Mercedes-Benz R500 Pressure Test Radiator Cap at your home or office.

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Pressure Test Radiator Cap Service

How much does a Pressure Test Radiator Cap cost?

On average, the cost for a Mercedes-Benz R500 Pressure Test Radiator Cap is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2007 Mercedes-Benz R500V8-5.0LService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$132.49 - $145.62
2006 Mercedes-Benz R500V8-5.0LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
Show example Mercedes-Benz R500 Pressure Test Radiator Cap prices

What is the radiator cap pressure test all about?

In a pressurized cooling system like those found on all cars, your car’s radiator cap is calibrated to seal in coolant to a particular pressure point, then allow some vapor to escape once that threshold has been reached. The ejected fluid is piped into the overflow bottle you might have seen in the engine bay. Then, as the engine cools, the coolant level may drop inside radiator. When that happens, a reverse-flow valve in the radiator cap opens to allow fluid from the bottle to return to the radiator. A radiator cap that isn’t working properly may cause too much fluid to escape the system.

Keep in mind:

  • A radiator cap pressure test is quick and simple, and replacement radiator caps are inexpensive.
  • Leaving a defective radiator cap in place can cause damage to the engine.

How it's done:

  • The vehicle engine is cooled before the radiator cap can be removed
  • The radiator pressure is relieved and the cap is removed
  • The radiator cap is pressure tested to specifications
  • The radiator cap is replaced and/or reinstalled to the radiator
  • The vehicle is verified to confirm problem is fixed

Our recommendation:

If your car’s engine overheats, or the overflow bottle seems overly full, have the radiator (and radiator cap) pressure tested.

What are the common symptoms indicating you need to pressure test the radiator cap?

  • Car overheats
  • Car’s overflow bottle fills up

How important is this service?

Not having this safety valve on the car’s cooling system operate properly can over- or under-pressurize the system, leading to damage to hoses, the radiator, and even the car’s cylinder head.

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Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(10)

Rating Summary
9
0
0
0
1
9
0
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1

Dellano

18 years of experience
513 reviews
Dellano
18 years of experience
Mercedes-Benz R500 V8-5.0L - Car is not starting - Hyattsville, Maryland
Dellano made the necessary checks to the car and determined that the reason for the battery drainage is due to a lack of driving

Rudy

36 years of experience
30 reviews
Rudy
36 years of experience
Mercedes-Benz R500 V8-5.0L - Oil Change - Houston, Texas
This guys has been working as Mercedes Benz mechanic for 18 years. Still does. Knowledgeable person and courteous.

Daniel

8 years of experience
6 reviews
Daniel
8 years of experience
Mercedes-Benz R500 V8-5.0L - Alternator - North Charleston, South Carolina
Daniel communicated in advance of appointment, arrived a few minutes early and started work immediately after making sure of service required. He was knowledgeable, helpful and friendly. I'll request him for additional services.

Jamie

26 years of experience
30 reviews
Jamie
26 years of experience
Mercedes-Benz R500 V8-5.0L - Starter - North Charleston, South Carolina
Fantastic! Prompt and courteous. Completed job competently, reinstalled my battery and carpet without complaint and cleaned up the area. I would recommend him to anyone who needs service.

Excellent Rating

(10)

Rating Summary
9
0
0
0
1
9
0
0
0
1
Number of Mercedes-Benz R500 services completed
110+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

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