logo

Mercedes-Benz CLS53 AMG Pressure Test Radiator Cap at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(5,576)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

See availability

Customer Ratings

(5,576)

Pressure Test Radiator Cap Service

How much does a Pressure Test Radiator Cap cost?

On average, the cost for a Mercedes-Benz CLS53 AMG Pressure Test Radiator Cap is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2020 Mercedes-Benz CLS53 AMGL6-3.0L Turbo HybridService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2021 Mercedes-Benz CLS53 AMGL6-3.0L Turbo HybridService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2019 Mercedes-Benz CLS53 AMGL6-3.0L Turbo HybridService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2022 Mercedes-Benz CLS53 AMGL6-3.0L Turbo HybridService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$104.99 - $112.48
Show example Mercedes-Benz CLS53 AMG 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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Number of Mercedes-Benz services completed
61336+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(5,576)
Rating Summary
5,188
189
54
28
117
5,188
189
54
28
117

Robert

25 years of experience
10 reviews
Request Robert
Robert
25 years of experience
Request Robert
by Nancy
Mercedes-Benz SL500 V8-5.0L - 60,000 Miles Maintenance Service - Vancouver, Washington
Robert is five star. He called before he came to see if had any questions and to confirm that all was a go for my Mercedes 60 thousand mile check up on the following day... He arrived in a timely fashion and went right to work after he once again very thoroughly answered my questions about Your Mechanic, the company. He worked diligently for more than the 3 1/2 hours and cleaned up his work area to the condition my garage was when he entered. (Which I greatly appreciated) Robert informed me of one worn brake pad that needed attention in the near future and a need for a flushing of a fluid also... I was impressed with his professionalism and look forward to future mechanical work done by him...Thank you Your Mechanic for connecting me with Robert...

Chet

41 years of experience
493 reviews
Request Chet
Chet
41 years of experience
Request Chet
by Andrew
Mercedes-Benz C300 V6-3.0L - Pre-purchase Car Inspection - Spring Valley, California
Chet is the absolute best. Can't say I've ever come across someone as knowledgeable as him. Absolutely the best!

Bob

30 years of experience
42 reviews
Request Bob
Bob
30 years of experience
Request Bob
by jon
Mercedes-Benz ML350 V6-3.5L - Door Lock Actuator Replacement (Rear Hatch/Trunk) - Del Mar, California
Bob completed a 1.5 hour job in 20 minutes as he is a real professional.

Corey

17 years of experience
341 reviews
Request Corey
Corey
17 years of experience
Request Corey
by Anthony
Mercedes-Benz C250 L4-1.8L Turbo - Oil Change - Concord, North Carolina
He arrived on time and was professional and friendly. Work was completed in a timely manner and he was able to answer questions that I had.

Excellent Rating

(5,576)
Rating Summary
5,188
189
54
28
117
5,188
189
54
28
117
Number of Mercedes-Benz services completed
61336+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Recent articles & questions

How to Transfer a Car Title in New Hampshire
Car Car titles are designed to prove ownership of the vehicle in question. The person (or persons) named on the title owns the vehicle. When that ownership changes, either through buying or selling, or through gifting or inheriting, the title...
Read more
Oklahoma Speed Limits, Laws, and Fines
Following Following is an overview of the laws, limits, and fines as they relate to speeding traffic violations in the state of Oklahoma. Speed limits in Oklahoma 75 mph: turnpikes and rural interstates 70 mph: other freeways 65 mph: most...
Read more
Veteran and Military Driver Laws and Benefits in North Carolina
The The state of North Carolina offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the past, or are current active military members. Driver’s license veteran designation Due to...
Read more

Location of ignition relay on a Ford Taurus 2002

The starter relay should be located at #23 in your power distribution box. Be sure to verify this with your owner's manual. If that relay is good, you may have an ignition switch issue (https://www.yourmechanic.com/services/ignition-switch-replacement). Symptoms of either can be...
Read more

Brakes failure - 2014 BMW X1

Hello. There is a recall for the brake booster (http://www.edmunds.com/car-news/2012-2014-bmw-320i-and-328i-among-vehicles-recalled-for-brake-booster-problem.html) intermittently not working and causing a loss of brake power assist. Contact your dealer to see if your car is covered under the recall.
Read more

What is the difference between engine oil warning light and another warning light just like that but with waves under the sign? 1996 Mitsubishi Galant

Hello- the warning light you mention is a " low coolant (https://www.yourmechanic.com/article/how-often-do-i-need-to-top-off-my-coolant)" indicator. Once the engine is cool - check your coolant reservoir and/or cooling system for proper fluid level. Since you seem to have lost fluid, I would recommend...
Read more
  1. Home
  2. Estimates
  3. Mercedes-Benz
  4. CLS53 AMG
  5. Pressure Test Radiator Cap

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com

Read FAQ
GET A QUOTE