VW Coolant Ravenol of Germany German VW G12 Coolant

How To Flush VW Coolant Basic Overviews

Changing your VW coolant isn't as difficult as you think. We've taken our years of VW engine coolant service experience and put it to work for you! Blauparts provides some basic overviews on how to flush VW coolant.

4 Cylinder Models
5 Cylinder Models
V6 Models
V8 Models

 

Important VW Coolant Draining Flushing Filling Info

Before you change your coolant please read some important information regarding:

Important VW Coolant Reminders

Incorrect VW CoolantAs an independent VW service garage with over 25 years of hands-on experience, we know what fails on VWs and why. We feel that changing your fluids is one of the most important preventive maintenance routines. Yet, for many VW owners, this seems to be one of the most neglected area of maintenance. Thoroughly flushing your fluids at the proper intervals can help your VW reach 150,000 miles and beyond!

#1 VW Coolant Change Intervals

Blauparts recommends changing 'long life' VW coolant every 3 to 4 years. Why? The combination of chemical additives contained in coolant, responsible for retaining alkalinity and inhibiting corrosion within the engine's cooling system, over time become depleted. Similar to oil, VW coolant eventually breaks down, becomes weak, and "gets dirty." For maximum corrosion protection and prolonged engine life, flushing VW coolant every 3 to 4 years (40,000 – 50,000 miles) is imperative. Thoroughly flushing your VW's coolant is most convenient when done during timing belt replacement.

#2 What Type Of VW Coolant

Use ONLY VW G13, or G12 approved anti-phosphate, anti-amine, anti-phosphorous coolant! Do NOT use regular store bought coolant, which typically contains ethylene glycol and doesn't correspond with the specifications of a VW cooling system. The specification or type of VW coolant required for a particular model can be found stamped on the expansion tank (e.g. G13 or G12) as well as in the owner's manual under the coolant section. It's also good to note the color of your coolant (e.g. pink or purple). See VW Coolant Features section below for further VW coolant information and specifications.

What happens if you don't use correct approved VW coolant?
Inferior coolant has an adverse reaction within a VW cooling system. Poor quality coolant contaminates the system and eats away at metal, rubber, and plastic components. Obvious external indicators are bulging coolant hoses and white calcified residue oozing from coolant hose clamp mating areas (See Image 2). Not so obvious is lime and scale deposits that begin to build-up in the radiator core, restricting coolant flow and causing the engine to run hotter (especially in summer and warmer climates). All of this eventually causes serious engine problems (i.e. water pump failure - See Image 1). If your coolant is green or brown in color, thoroughly flush your cooling system immediately! You'll notice similar warnings in your owner's manual under the coolant section.

#3 VW Coolant Concentration

Remember to check the concentration (pH) of your VW coolant on a regular basis. It's especially important to maintain the correct VW coolant concentration during winter to protect your system against freezing temperatures. If your coolant concentration is weak, change it. Over time, weak or contaminated coolant (incorrect pH) can cause serious engine problems (i.e. water pump failure, as mentioned above). It's also important to note that approved VW coolant comes in concentrated form. You MUST dilute the coolant using DISTILLED water to a 50/50 concentration. DO NOT mix normal tap water with coolant. Tap water varies in pH, mineral, and chemical content and can adversely affect your new coolant and cooling system. See Important Coolant Draining Flushing Filling Info section below for more information.


PLEASE NOTE:

Blauparts recommends topping off your expansion tank with the same type of coolant that is currently in your VW cooling system. This ensure the purity of your cooling system. Owners who are currently using G12 coolant may wish to upgrade to the latest G13 purple coolant the next time they thoroughly flush the cooling system (i.e. during timing belt replacement). Please read our Topping Off section.

Even though the latest G13 coolant is backward compatible, Blauparts recommends thoroughly flushing your cooling system, when upgrading to a different type of coolant. This maintains the purity of the cooling system.

Blauparts only stocks coolant that meets approved VW G13 and G12 coolant specifications.

VW G13 Coolant

  • Violet Purple G12+ Audi Antifreeze - Ravenol of Germany
    Used in VW models 2008-current


    Specifications
    VW TL 774 J

    VW Coolant P/N
    VW VW G 013 A8J M1
    VW VW G 013 A8J 1G

    G13 coolant is suitable where G12, G12+, and
    G12++ coolant applications are required.


    Concentrated 1.5 Liter Bottles

    LINKS
    - ON SALE!
    Purple G13 VW Antifreeze - Ravenol
    Purple G13 VW Antifreeze - Case of 10


    Buy Purple G12+ Audi Antifreeze


  • Ravenol German LGC Features:
    LGC = Lobrid (Hybrid) Glycerin Coolant

    • Purple Violet Color

    • Advanced eco-friendly monoethylene glycol and
      glycerine based coolant. Phosphate, nitrite,
      amine free.

    • Formulated based on most recent proven
      inhibitor development by combining glycerine
      and silicates with organic additive technology
      (OAT). Latest 'extended life' coolant vs older
      'long-life.'

    • Superior cold temperature performance with
      freezing protection up to -37° C (50/50 ratio) and
      up to -52° C (60/40 ratio). Excellent frost
      protection in severe winter climates.

    • Excellent heat transfer and dissipation qualities
      for high performance applications. This high
      performance VW coolant dissipates heat more
      effectively than conventional coolant and raises
      the boiling point. Undiluted boiling point of
      175° C.

    • High flow characteristics without cavitation in
      high flow, high temperature RPM cooling
      systems. This molecular film formulation
      guarantees great heat transition.

    • Contains premium corrosion additives for
      optimal corrosion prevention for all metals and
      metal alloys including aluminium in cooling
      systems. Doesn't eat away at plastic and
      rubber components of the cooling system.

    • Special additives prevents not only corrosion
      but also laminations and deposits in the cooling
      system.

    Other Specifications
    Porsche Coolant:
    000 043 301 47



  • VW G12+ Coolant

    Violet Purple G12+ Audi Antifreeze - Ravenol of Germany
    Used in VW models 2003-2008


    Approval Specifications
    VW TL 774 D
    VW TL 774 F

    VW Coolant P/N
    G 012 A8F, G012A8F
    G 012 A8F M1, G012A8FM1
    G 012 A8F M8, G012A8FM8
    G 012 A8F M9, G012A8FM9
    G 012 A8F A1, G012A8FA1
    G 012 A8F A4, G012A8FA4
    G 012 A8F A8, G012A8FA8


    G12+ coolant is suitable where G12
    applications are required.


    Concentrated 1.5 Liter Bottles

    LINKS - ON SALE!
    Purple G12+ VW Coolant - Ravenol
    Purple G12+ VW Coolant - Case of 10

    Buy Purple G12+ Audi Antifreeze






  • Ravenol German OTC Features
    :
    OTC = Organic Technology Coolant

    • Purple Violet Color

    • Eco-friendly monoethylene glycol based
      coolant. Phosphate, borate, silicate, nitrite,
      amine free.

    • Superior cold temperature performance with
      freezing protection up to -37° C (50/50 ratio) and
      up to -52° C (60/40 ratio). Excellent frost
      protection in severe winter climates.

    • Excellent heat transfer and dissipation qualities
      for high performance applications. This high
      performance VW coolant dissipates heat more
      effectively than conventional coolant and raises
      the boiling point. Undiluted boiling point of
      175° C.

    • High flow characteristics without cavitation in
      high flow, high temperature RPM cooling
      systems. This molecular film formulation
      guarantees great heat transition.

    • Contains premium corrosion additives for
      optimal corrosion prevention for all metals and
      metal alloys including aluminium in cooling
      systems. Doesn't eat away at plastic and
      rubber components of the cooling system.

    • Special additives prevents not only corrosion
      but also laminations and deposits in the cooling
      system.

    Other Specifications
    Mercedes Benz Coolant: MB 325.3
    Jaguar Coolant: JLM20972-1
    Land Rover Coolant: STC50527, STC50529, STC50530
    Porsche Coolant: 000 043 203 78, 000 043 203 79, 000 043 300 31, 000 043 330 88
    Saab Coolant: 12799123, 12799124, 12346290
    Opel Coolant: GM 6277 M
    Ford of Europe Coolant: WSS M 97 B44D
    MAN 324 SNF, MTU MTL 5048, B 040 1065
  • The following older spec coolants are no longer sold by the dealer and have been replaced by the latest G13 specification.
  • Blue G11 Audi Pentosin Coolant

    G11 Blue Pentosin Coolant

    Discontinued - NLA

    Used in VW models up to 6/1996
    Part Numbers:
    G001100
    VW043611
    Pentosin Coolant Pentofrost NF
    Blue G11 VW Coolant
  • Red Pink G12 Audi Pentosin Coolant

    G12 Red Pink Pentosin Coolant

    Discontinued - NLA

    Used in VW models 6/1996-2003
    Specifications:
    VW TL 774 F
    WSS M97 B44D
    GM 6277M
    MAN 324 SNF
    Part Numbers:
    G001200
    G 012 A8D, G012A8D
    ZVw 237 G12
    Pentosin Coolant Pentofrost SF
    Red Pink G12 VW Coolant
  • Violet Purple G12+ Audi Antifreeze

    G12++ Coolant

    Discontinued - NLA

    Used in VW models 2008-current
    Specifications:
    VW TL 774 G
    Part Numbers:
    G 012 A8G M1, G012A8GM1
    LINKS
    Purple G12++ VW Coolant - Genuine

Ravenol Coolant

Why Choose Ravenol German Coolant?

Ravenol coolant is superior to leading brands of domestic and European brands of glycol based engine coolant. If your looking for an OEM replacement coolant for your VW that has the "upper edge" in exceptional performance qualities, look no further! Why?

Advanced VW Coolant Corrosion Protection

Ravenol VW coolant is classified as a long life / lifetime coolant that provides stable and consistent corrosion protection for the long life of the engine. Ravenol coolant was specifically engineered for advanced high performance European engine designs and metal alloys. An environmentally friendly coolant that contains a unique OAT (organic acid technology) package that is phosphate, nitrite, and amine free. Ravenol's OAT package reduces overall acidity within the cooling system, extending the life of cooling system components and related engine components (i.e. water pump, alloy radiators, plastic radiator and end caps, cylinder head manifolds, coolant hoses, cast and alloy engine blocks). The advanced profile package prevents scale build up and deposits in the cooling system thereby improving cooling system circulation.

Exceptional Cooling Performance

Ravenol VW coolant outperforms other leading domestic and German brands of coolant. Ravenol's unique formulation and molecular profile improves cooling system flow for guaranteed heat transition away from vital internal engine components, especially the cylinder head. The undiluted boiling point of Ravenol's coolant is 370°F / 175° C, significantly reducing the risk of boil overs in high temperature climates and high performance RPM engine designs. Ravenol's coolant also provides maximum frost protection in extreme cold climates (i.e. -37° C 50/50 ratio and up to -52° C 60/40 ratio).


Important VW Coolant Draining Flushing Filling Info

Flushing Audi CoolantPictured Example. Blauparts purchased a used 1997 Audi A4 with approximately 90,000 miles, which had 1 previous owner. The previous owner had every service record from the date of sale, regular oil changes, preventative maintenance, and took really good care of the car. However, note the sediment or contamination of the G12 coolant that was removed when we thoroughly flushed the system. Even when using approved coolant, years of continuous circulating through the engine causes a measure of sediment to buildup. Changing Audi Coolant Service Bulletin

The combination of chemical additives contained in coolant (even long-life coolant), responsible for retaining alkalinity and inhibiting corrosion within the engine's cooling system, over time become depleted. Similar to oil, coolant eventually breaks down, becomes weak, and "gets dirty." For maximum corrosion and prolonged engine life, flushing VW coolant every 3 to 4 years (40,000 – 50,000 miles) is important.

Draining VW Coolant

Do you want your VW to reach 150,000 miles and beyond; or your new water pump to last 60,000 to 90,000 miles? Then, it is important to replicate the cooling system to a like new factory condition. Simply draining is not enough. Draining alone can leave as much as 30 to 50% of the old coolant in the engine block. Your cooling system should be free of any and all contaminants! You can not be lazy when it comes to coolant flushing and water pump replacement! Cutting corners now adds time, labor, and money later.

It's the installers responsibility to take the necessary time to thoroughly flush the cooling system. It has been noted that due to time constraints, inconvenience, and profit, many individuals, mechanics, and repair shops do not take the extra time needed to thoroughly flush the entire cooling system. Thoroughly flushing the coolant involves the engine block, radiator, heater core, and hoses.

Premature water pump failure (bearings and seals) can occur if you don't take the time to flush the entire cooling system and it's related components. Often when problems arise, such as an coolant leak, the new VW water pump is blamed as the cause when in fact the opposite is true. It's usually because the installer neglected to follow this important step.

Flushing The VW Cooling System

It is imperative that the VW cooling system be thoroughly flushed of all accumulated silt and sediment buildup. All aftermarket cooling system additives, or stop leak products that may have been added to the cooling system (past or present) should be completely flushed! Thoroughly flushing the cooling system involves the engine block, radiator, heater core, and hoses.

Only use tap water to flush the entire cooling system. Do NOT use cooling system flush products. Many of these agents contain muriatic and/or other acids. Remnants of these acids left in the cooling system can cause your new VW water pump to prematurely fail (see example images on related water pump replacement page).

Filling and Topping Off The VW Cooling System

Use ONLY VW G13, or G12 approved anti-phosphate, anti-amine, anti-phosphorous coolant! Do NOT use regular store bought coolant, which typically contains ethylene glycol and doesn't correspond with the specifications of a VW cooling system. It's also important to note that approved VW coolant comes in a concentrated form. You MUST dilute the coolant using DISTILLED water to a 50/50 concentration. DO NOT mix normal tap water with coolant. Tap water varies in pH, mineral, and chemical content and depending on these factors can adversely affect your new coolant and the cooling system. Never fill or top off with full concentrate G13 or G12 VW coolant. Your VW coolant should never exceed an coolant ratio of 60%. If it's over 60%, an inefficient VW cooling system will result, decreasing flow through the radiator along with poor heat transfer through the engine block.

Important Reminder: Make sure that your local quick lube or mechanic isn't adding or topping off your system with incorrect coolant. Mixing factory approved coolant with any other coolant will cause an adverse chemical reaction with the existing coolant and contaminates the cooling system, thus affecting the longevity of the VW water pump. If your coolant is green or brown in color thoroughly flush your cooling system immediately! You'll notice similar warnings in your owner's manual under the coolant section. Read the warnings on the coolant coolant bottle regarding improper use being harmful or fatal.

Back To Top


How To Flush VW Coolant - Basic Overviews

Flushing your VW's coolant is most easily done when replacing your timing belt.
Refer to the factory manual for VW cooling system capacities and mixture ratios.
We recommend having an A.S.E. certified VW mechanic change your VW coolant. Always wear gloves and safety goggles when handling VW fluids.
This is a basic overview of what is involved when flushing VW coolant. It is not intended to replace the factory manual.
Please refer to the factory manual for detailed instructions.

How To Change Engine Coolant On a VW 4 Cylinder (1997 - On) :

  1. When the engine has cooled down, remove the VW coolant tank cap.
  2. Draining the VW coolant from the 4cyl cooling system:
    Remove the lower radiator drain plug from the lower front of the radiator (VW A4, VW Passat). Remove the passenger side lower radiator hose. Remove the outer VW coolant hose that connects to the oil cooler. To drain the heater core you'll need to remove the hose on the coolant flange or transfer pipe located on the back side of the engine. This hose goes from the cylinder head to the heater core.
  3. After the system is done draining, put the VW coolant tank cap back on. Carefully work off and remove the smallest hose that is connected to the top of the VW coolant tank. Be careful, the tank nipple likes to crack and break off.
  4. With a blow gun and compressed air on low, carefully insert the blow nozzle into the small hose. Wearing safety goggles, carefully force the air out so that any VW coolant that's still trapped in the cooling system is released.
  5. Reinstall the VW coolant drain plug. Reinstall the coolant tank hose(s). Fill the VW cooling system with distilled water. Start the car and air bleed the cooling system as outlined in the factory manual. Run the car until the cooling fan comes on.
  6. Repeat steps 1 through 5 until the water comes out clean.
  7. Verify that you have the correct anti-phosphate anti-amine G13 or G12 VW coolant. If it's full concentrate, mix a 50/50 ratio per the Bentley manual. Fill your VW cooling system with this 50/50 mixture. You MUST dilute the coolant using DISTILLED water to a 50/50 concentration. DO NOT mix normal tap water with coolant. Tap water varies in pH, mineral, and chemical content and depending on these factors can adversely affect your new coolant and the cooling system. Note: Some factory VW coolants sold by dealers are already premixed and do not require further dilution.
  8. Run the 4cyl engine and check for any VW coolant leaks.
  9. Top off the coolant tank to the fill line. Do not overfill.
  10. Using a permanent marker, write 'G13 or G12 Coolant Only' on the VW coolant tank.
  11. Be environmentally responsible and dispose of your old VW coolant properly.

How To Change Engine Coolant On a VW 5 Cylinder:

  1. When the engine has cooled down, remove the VW coolant tank cap.
  2. Draining the VW coolant from the 5cyl cooling system:
    Remove the lower radiator hose. Only about 75% of the VW coolant will drain, the rest is in the engine block and heater core. To drain the heater core you'll need to remove the hose on the coolant flange or transfer pipe located on the back side of the engine. This hose goes from the cylinder head to the heater core. You can also drain the engine block by removing the thermostat housing or the small 6" hose adjacent from the thermostat housing. This hose connects to the steel tubing that runs along side the engine block to the back of the engine.
  3. Reinstall the hoses. Fill the VW cooling system with distilled water. Start the car and air bleed the cooling system as outlined in the factory manual. Run the car until the cooling fan comes on.
  4. Repeat steps 2 through 3 until the water comes out clean.
  5. Verify that you have the correct anti-phosphate anti-amine G13 or G12 VW coolant. If it's full concentrate, mix a 50/50 ratio per the Bentley manual. Fill your VW cooling system with this 50/50 mixture. You MUST dilute the coolant using DISTILLED water to a 50/50 concentration. DO NOT mix normal tap water with coolant. Tap water varies in pH, mineral, and chemical content and depending on these factors can adversely affect your new coolant and the cooling system. Note: Some factory VW coolants sold by dealers are already premixed and do not require further dilution.
  6. Run the 5cyl engine and check for any VW coolant leaks.
  7. Top off the coolant tank to the fill line. Do not overfill.
  8. Using a permanent marker, write 'G13 or G12 Coolant Only' on the VW coolant tank.
  9. Be environmentally responsible and dispose of your old VW coolant properly.

How To Change Engine Coolant On a VW V6:

  1. When the engine has cooled down, remove the VW coolant tank cap.
  2. Draining the VW coolant from the V6 cooling system:
    There is a 8mm Allen drain plug on the back side of the subframe cross member offset to the drivers side. It is recessed about 1 inch into the casting of the engine block. You'll probably need a flash light to find it. To drain the heater core you'll need to remove the hose on the coolant flange or transfer pipe located on the back side of the engine. This hose goes from the cylinder head to the heater core.
  3. After the system is done draining, put the VW coolant tank cap back on. Carefully work off and remove the smallest hose that is connected to the top of the VW coolant tank. Be careful, the tank nipple likes to crack and break off.
  4. With a blow gun and compressed air on low, carefully insert the blow nozzle into the small hose. Wearing safety goggles, carefully force the air out so that any VW coolant that's still trapped in the cooling system is released.
  5. Reinstall the VW coolant drain plug. Reinstall the coolant tank hose(s). Fill the VW cooling system with distilled water. Start the car and air bleed the cooling system as outlined in the factory manual. Run the car until the cooling fan comes on.
  6. Repeat steps 1 through 5 until the water comes out clean.
  7. Verify that you have the correct anti-phosphate anti-amine G13 or G12 VW coolant. If it's full concentrate, mix a 50/50 ratio per the Bentley manual. Fill your VW cooling system with this 50/50 mixture. You MUST dilute the coolant using DISTILLED water to a 50/50 concentration. DO NOT mix normal tap water with coolant. Tap water varies in pH, mineral, and chemical content and depending on these factors can adversely affect your new coolant and the cooling system. Note: Some factory VW coolants sold by dealers are already premixed and do not require further dilution.
  8. Run the V6 engine and check for any VW coolant leaks.
  9. Top off the coolant tank to the fill line. Do not overfill.
  10. Using a permanent marker, write 'G13 or G12 Coolant Only' on the VW coolant tank.
  11. Be environmentally responsible and dispose of your old VW coolant properly.

How To Change Engine Coolant On a VW V8:

  1. When the engine has cooled down, remove the VW coolant tank cap.
  2. Draining the VW coolant from the V8 cooling system:
    There are 2 drain plugs. One on the drivers side and one on the passenger side of the oil pan. To drain the VW coolant from the radiator, remove the lower passenger side radiator hose.
  3. After the system is done draining, put the VW coolant tank cap back on. Carefully work off and remove the smallest hose that is connected to the top of the VW coolant tank. Be careful, the tank nipple likes to crack and break off.
  4. With a blow gun and compressed air on low, carefully insert the blow nozzle into the small hose. Wearing safety goggles, carefully force the air out so that any VW coolant that's still trapped in the cooling system is released.
  5. Reinstall the VW coolant drain plugs. Reinstall the coolant tank hose(s). Fill the VW cooling system with distilled water. Start the car and air bleed the cooling system as outlined in the factory manual. Run the car until the cooling fan comes on.
  6. Repeat steps 1 through 5 until the water comes out clean.
  7. Verify that you have the correct anti-phosphate anti-amine G13 or G12 VW coolant. If it's full concentrate, mix a 50/50 ratio per the Bentley manual. Fill your VW cooling system with this 50/50 mixture. You MUST dilute the coolant using DISTILLED water to a 50/50 concentration. DO NOT mix normal tap water with coolant. Tap water varies in pH, mineral, and chemical content and depending on these factors can adversely affect your new coolant and the cooling system. Note: Some factory VW coolants sold by dealers are already premixed and do not require further dilution.
  8. Run the V8 engine and check for any VW coolant leaks.
  9. Top off the coolant tank to the fill line. Do not overfill.
  10. Using a permanent marker, write 'G13 or G12 coolant Only' on the VW coolant tank.
  11. Be environmentally responsible and dispose of your old VW coolant properly.

Back To Top

 

BLAUfergnügen! Inc. · 4921 Cty CR · Manitowoc, WI 54220 · (920) 758-3232    -    Business Hours: Monday thru Friday 9:00 am - 5:00 pm CST
BLAUfergnugen! Inc. (DBA Blauparts) copyright © 1998 - 2014. BLAUfergnügen! Inc. is an independent parts specialist and is not affiliated with or endorsed by Volkswagen of America (VwoA), VolkswagenAG, Audi of America, and Audi AG. All trademarks referenced in this website are displayed for identification purposes only and are in no way intended to denote any affiliation with their corresponding owners. Prices, specifications, manufacturers, availability, and special offers are subject to change without notice.

* Free Shipping terms and conditions. Specials and Sales terms and conditions.