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BMW 540i Cold Start Injector Replacement at your home or office.

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Cold Start Injector Replacement Service

How much does a Cold Start Injector Replacement cost?

On average, the cost for a BMW 540i Cold Start Injector Replacement is $106 with $11 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1994 BMW 540iV8-4.0LService typeCold Start Injector ReplacementEstimate$136.55Shop/Dealer Price$159.44 - $188.74
1995 BMW 540iV8-4.0LService typeCold Start Injector ReplacementEstimate$116.55Shop/Dealer Price$139.47 - $168.79
Show example BMW 540i Cold Start Injector Replacement prices

What is the Cold Start Injector all about?

The cold start injector is also known as the cold start valve. The part is located on the cold air intake, which is found on the intake manifold. It is a fuel injector that is controlled electronically. The cold start injector works only when the engine has a cold start, or when the engine’s temperature is below a certain point. When this happens, a computer tells the injector to inject more fuel into the mixture that goes through the cylinders to the engine. The goal is for the engine to have an easier and faster start even when it is cold.

It is important to note that the temperature is referring to that of the engine, not the outside weather. When the cold start injector isn’t working properly, the engine will sound rough and will have trouble idling unless pressure stays on the pedal to increase the amount of fuel that goes into the manifold. The engine may keep dying every time it is started until it warms up enough.

Keep in mind:

  • The cold start injector also helps moderate engine speeds while improving performance and even fuel economy.
  • Another job of the cold start injector is to help control engine idle speed.
  • The cold start injector wires are separate from other injectors and they are often screwed in.
  • The injector can be tested for proper working order.

How it's done:

  • The Cold Start Injector is verified that it needs to be replaced. The electrical connector is then disconnected.
  • The defective Cold Start Injector is unscrewed from the housing and removed.
  • After the new Cold Start Injector is installed and secured into the housing, the fuel line is connected.
  • The electrical connection is then connected and the Cold Start Injector is tested for operation.
  • The vehicle is road tested to ensure proper operation of the Cold Start Injector and checked for leaks.

Our recommendation:

If the engine sounds unusual when idling or if it has trouble starting when it is cold, you should have one of our expert mechanics inspect the cold start injector. The technician can test it with a diagnostic meter to determine the issue.

What common symptoms indicate you may need to replace the Cold Start Injector?

  • Engine won’t start or stalls
  • Engine runs poorly
  • Engine stops when you take your foot off the pedal

How important is this service?

The engine may not start when the cold start injector stops working, so it is important to have it tested before you are stranded.

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Number of BMW 540i services completed
671+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
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Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(61)
Rating Summary
57
3
0
0
1
57
3
0
0
1

Whitney

39 years of experience
783 reviews
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Whitney
39 years of experience
Request Whitney
by Eugene
BMW 540i V8-4.4L - Ignition Switch - Mountain View, California
Whitney did an incredible job repairing my BMW, and I will happily recommend his service to my friends and other YourMechanic customers. When I called YourMechanic, I had no idea what was wrong with my car except that it wouldn't start. Whitney arrived within half an hour, and immediately began troubleshooting the problem. I was amazed at his fluency with all the internals, his workmanship, and his methodical approach as he ruled out the possibilities. And I loved that he explained exactly what he was doing at each step. This demystified a lot about my car, and I now feel much more qualified to do basic care/maintenance. Whitney eventually discovered that a blown fuse caused by a busted ignition was keeping electricity from reaching the fuel pump. He put in a new fuse as a temporary fix, showed me how to start the car without blowing it again, and installed the replacement ignition when it arrived a few days later. I can't overstate how happy I am with the service provided by Whitney and YourMechanic. The convenience alone is great, but Whitney's knowledge, workmanship, and positive, friendly attitude are what make me confident I will call again :) Thanks!

Robert

21 years of experience
64 reviews
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Robert
21 years of experience
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by Curtis
BMW 540i V8-4.4L - Starter - Seattle, Washington
Robert provided prompt and excellent service. He removed and installed a new starter in my BMW 540i so I got finally get it back on the road where it belongs. Thank you Robert!

Jermaine

24 years of experience
270 reviews
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Jermaine
24 years of experience
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by Marco
BMW 540i V8-4.4L - Window Motor / Regulator Assembly Replacement (Driver Side Front) - Columbia, Maryland
Jermaine was courteous and professional as well as completed the job to my satisfaction.

Robert

31 years of experience
641 reviews
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Robert
31 years of experience
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by Donald
BMW 540i V8-4.4L - AC is not working - Saratoga, California
The job was cancelled owing to owner's time constraints. I will call again when possible.

Excellent Rating

(61)
Rating Summary
57
3
0
0
1
57
3
0
0
1
Number of BMW 540i services completed
671+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

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