BMW 323is 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 BMW 323is Pressure Test Radiator Cap is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1998 BMW 323isL6-2.5LService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$132.49 - $145.62
1999 BMW 323isL6-2.5LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
Show example BMW 323is 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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6,192
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6,192
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Brandon

15 years of experience
9 reviews
Brandon
15 years of experience
BMW 323is L6-2.5L - Window Motor / Regulator Assembly Replacement (Driver Side Front) - Louisville, Kentucky
Didn't bring enough tools.rest ok.

Edgar

25 years of experience
41 reviews
Edgar
25 years of experience
BMW 323is L6-2.5L - Brake Pads Replacement (Front, Rear) - South San Francisco, California

Ben

18 years of experience
114 reviews
Ben
18 years of experience
BMW 328xi L6-3.0L - Brake Rotor/Disc Replacement (Front, Rear) - Englewood, Colorado
Ben showed up early, was ready to work and got to work immediately. I did, however, not feel as if he was in a hurry or was trying to just get done with the job. I can confidently say that I will recommend him and look forward to working with him in keeping my E90 running for many, many more miles. Thanks Ben!

Andrew

11 years of experience
849 reviews
Andrew
11 years of experience
BMW 750Li xDrive V8-4.4L Turbo - Brake Pads Replacement (Front) - Shawnee Mission, Kansas
Very good, & courteous mechanic, would use Andrew again

Excellent Rating

(6,643)

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