BMW M340i xDrive 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

(6,643)

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.

Customer Ratings

(6,643)

Pressure Test Radiator Cap Service

How much does a Pressure Test Radiator Cap cost?

On average, the cost for a BMW M340i xDrive 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 BMW M340i xDriveL6-3.0L TurboService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2021 BMW M340i xDriveL6-3.0L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
Show example BMW M340i xDrive 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


Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(6,643)

Rating Summary
6,192
205
60
44
142
6,192
205
60
44
142

Eliud

23 years of experience
202 reviews
Eliud
23 years of experience
BMW 330i L6-3.0L - Check Engine Light is on - Loganville, Georgia
Professional

Matthew

9 years of experience
38 reviews
Matthew
9 years of experience
BMW 328i xDrive L4-2.0L Turbo - Spark Plugs - Denver, Colorado
Fast, Helpful, did a great job on my bmw!

Jose

17 years of experience
154 reviews
Jose
17 years of experience
BMW 528i L6-2.8L - Serpentine/Drive Belt - Las Vegas, Nevada
great service

Richard

11 years of experience
450 reviews
Richard
11 years of experience
BMW X3 L6-2.5L - PCV Valve Hose - Silver Spring, Maryland
Excellent Service!

Excellent Rating

(6,643)

Rating Summary
6,192
205
60
44
142
6,192
205
60
44
142
Number of BMW services completed
73073+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

Recent articles & questions

P2279 OBD-II Trouble Code: Intake Air System Leak
P2279 code definition Intake Air System Leak What the P2279 code means P2279 is an OBD-II generic code for the engine control...
10 Best Stores to Buy Auto Parts in Jacksonville, Florida
Automotive technicians rely on auto parts stores to add and replace car parts. The best auto parts shop in Jacksonville is AutoZone.
How to Contest a Parking Ticket
Parking tickets can be contested through mail or online. Schedule a hearing soon after receiving a parking ticket if your first attempt is denied.

Loss of power after driving for about a mile. The car won't drive over 30 mph.

Your car is equipped with wheel speed sensors (https://www.yourmechanic.com/services/wheel-speed-sensor-replacement) at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car's ECU. When the...

Car misfiring after timing belt was replaced. 1997 Honda Civic

Hello - obviously, you still have a timing belt issue (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-timing-belt). From a safety point of view, and the real possibility that further, even catastrophic, damage could be done to your engine, I would not drive it further before repairs...

I have 2012 Mazda CX5. How do I change the language on the information display system from Japanese to english? Thank you for y

I believe that this would be in the settings menu on the radio or instrument cluster. I would recommend checking in your owner's manual for this particular information to see if it tells you how to do it. If the...

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 (844) 997-3624 · hi@yourmechanic.com