Mercedes-Benz E320 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 E320 Pressure Test Radiator Cap is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2006 Mercedes-Benz E320L6-3.2L Turbo DieselService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$132.49 - $145.62
2005 Mercedes-Benz E320V6-3.2LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2009 Mercedes-Benz E320V6-3.0L Turbo DieselService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
1999 Mercedes-Benz E320V6-3.2LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.48 - $125.60
2008 Mercedes-Benz E320V6-3.0L Turbo DieselService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.55 - $125.72
2003 Mercedes-Benz E320V6-3.2LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
1997 Mercedes-Benz E320L6-3.2LService typePressure Test Radiator CapEstimate$99.99Shop/Dealer Price$117.28 - $130.25
1998 Mercedes-Benz E320V6-3.2LService typePressure Test Radiator CapEstimate$99.99Shop/Dealer Price$117.94 - $131.39
Show example Mercedes-Benz E320 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

(335)

Rating Summary
306
12
4
4
9
306
12
4
4
9

Quentin

22 years of experience
213 reviews
Quentin
22 years of experience
Mercedes-Benz E320 V6-3.2L - Window is not going up or down - Houston, Texas
Quentin was very helpful in determining the problem with my window. He was very professional and recommended additional services for future appointments. I would like for Quentin return on my scheduled repair to repair my car!

Matthew

33 years of experience
1235 reviews
Matthew
33 years of experience
Mercedes-Benz E320 L6-3.2L Turbo Diesel - Brakes, Steering and Suspension System - Williamsburg, Virginia
Very knowledgeable.

Tien

23 years of experience
903 reviews
Tien
23 years of experience
Mercedes-Benz E320 L6-3.2L - Brakes, Steering and Suspension System - Hayward, California
Tien is polite, professional and courteous, seems knowledgeable.

Kenny

28 years of experience
91 reviews
Kenny
28 years of experience
Mercedes-Benz E320 V6-3.2L - Oil Change - Sunnyvale, California
Great, quick, and friendly. I really wanted the piece of mind on my car that it is in great shape. Kenny did a full inspection and change. Was way less hassle then going to the shop. Thanks guys for the service.

Excellent Rating

(335)

Rating Summary
306
12
4
4
9
306
12
4
4
9
Number of Mercedes-Benz E320 services completed
3685+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

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