Audi 4000 Proportioning / Combination Valve Replacement at your home or office.

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Proportioning / Combination Valve Replacement Service

How much does a Proportioning / Combination Valve Replacement cost?

On average, the cost for a Audi 4000 Proportioning / Combination Valve Replacement is $188 with $93 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1980 Audi 4000L5-2.2LService typeProportioning / Combination Valve ReplacementEstimate$730.33Shop/Dealer Price$901.67 - $1376.30
1981 Audi 4000L5-2.2LService typeProportioning / Combination Valve ReplacementEstimate$710.33Shop/Dealer Price$881.70 - $1356.35
1983 Audi 4000L4-1.6L DieselService typeProportioning / Combination Valve ReplacementEstimate$710.33Shop/Dealer Price$881.70 - $1356.35
1982 Audi 4000L5-2.2LService typeProportioning / Combination Valve ReplacementEstimate$710.33Shop/Dealer Price$881.66 - $1356.28
1986 Audi 4000L4-1.8LService typeProportioning / Combination Valve ReplacementEstimate$281.23Shop/Dealer Price$345.35 - $498.20
1985 Audi 4000L4-1.8LService typeProportioning / Combination Valve ReplacementEstimate$281.23Shop/Dealer Price$345.32 - $498.15
1982 Audi 4000L4-1.6L Turbo DieselService typeProportioning / Combination Valve ReplacementEstimate$821.01Shop/Dealer Price$1018.56 - $1572.29
1985 Audi 4000L5-2.2LService typeProportioning / Combination Valve ReplacementEstimate$715.33Shop/Dealer Price$887.11 - $1362.07
Show example Audi 4000 Proportioning / Combination Valve Replacement prices

What is the Proportioning / Combination Valve all about?

Your braking system relies on hydraulic pressure to operate. When you depress the brake pedal, brake fluid is pushed through the system to the wheels. Fluid pressure is responsible for actuating both disc brake calipers, as well as drum brakes. However, there are numerous components in line between the brake pedal and the brakes themselves, including the combination valve.

The combination valve is responsible for metering fluid to disc brakes, as well as fulfilling tasks done by both the pressure differential switch and proportioning valve (which is responsible for reducing the fluid pressure in the lines leading to the rear drum brakes). This is necessary because of how brakes work in terms of lockup – the more weight there is on a wheel, the more force can be applied without locking up the brakes. In rear drum brakes, the weight on the wheel is comparatively small (the weight of the engine on the front wheels is considerable).

Keep in mind:

  • In modern cars that employ combination valves, replacing the entire valve body is necessary if the proportioning valve fails.
  • There is no way to check operation on this type of valve unless it has failed completely.
  • The valve may have failed due to many reasons, including debris in the brake fluid.

How it's done:

  • The defective proportioning combination valve brake lines are disconnected
  • The defective proportioning combination valve is removed from the vehicle
  • The new proportioning combination valve is installed and the brake lines are connected to valve
  • The brake system is bled and purged of air in the system and the brake fluid is refilled
  • The vehicle is road tested for proper brake operation

Our recommendation:

Follow your automaker’s recommendations on brake system service to ensure that the fluid remains in good condition and free of debris. Have your braking system maintained by our expert mechanics to ensure that any potential problems are caught as soon as possible. Driving with a failing proportioning valve puts you at increased risk.

What common symptoms indicate you may need to replace the Proportioning / Combination Valve?

  • Rear brakes lock up easily, particularly on wet pavement

How important is this service?

While it is still possible to drive with a failed or failing proportioning valve, it’s not recommended because it decreases your safety while increasing the risk of being involved in an accident because your rear brakes lock up under even light loads. Have the entire combination valve assembly replaced immediately.

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Jonathan

13 years of experience
51 reviews
Jonathan
13 years of experience
Audi 4000 L4-1.6L Turbo Diesel - Alternator Belt - Arlington, Texas
Jonathan showed up early for his scheduled appointment. That doesn't happen often in life. Ask your doctors office. He was fully prepared for the reported issue with my car. He informed me that the job may take 20 minutes or hours, based on the complexibility of the bolt location and if they were factory standard. Most of the bolts were tightened back in 1983 and had not been loose since. He took almost 2 hours but the job was done correctly. My test drive proved the work to be correct, He will be recommended to others and will be requested to come back for any other repairs needed on my cars

Robert

20 years of experience
1109 reviews
Robert
20 years of experience
Audi A3 Quattro L4-2.0L Turbo - Oil Change - Denver, Colorado
Friendly, trustworthy and reliable. I will reach out to Robert again for future mechanical needs on my Audi.

Angel

5 years of experience
132 reviews
Angel
5 years of experience
Audi A4 Quattro V6-3.0L - Hood Latch Inspection - Suitland, Maryland
I am so very satisfied with the service and the experience that I had with Mr Angels was absolutely Amazing.He took his time Explaining everything to me he made me feel that he cared .I wouldn’t hesitate to tell my family and friends about this company.Very hard worker .Thank you for taking your time by being so very informative as you explained everything to me.

Kanstantsin

19 years of experience
71 reviews
Kanstantsin
19 years of experience
Audi Q7 V6-3.6L - Window Regulator Replacement (Driver Side Front) - Littleton, Colorado
Kanstantsin always does a great job on my car. I appreciate that he comes to my work which is so convenient when you don't have normal work hours!! It was so considerate of him, once finished, to look over the rest of my car to see if there were other things that needed to be done in the near future. I will definitely continue to use Kanstantsin for my vehicle repair needs.

Excellent Rating

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Rating Summary
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57
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