BMW 840i service by top-rated mechanics at the convenience of your home or office

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How much does BMW 840i repair and maintenance cost?

The cost depends on your car, the type of service, and where you live. Here are estimates for a selection of BMW 840i services.

Service Estimate Savings Dealer Estimate Location
Service type Car Battery Replacement for 2021 BMW 840i L6-3.0L Turbo Estimate $317 Savings 44.03% Dealer Estimate $567 Location Santa Ana, CA

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Answers to common BMW 840i questions

Missing/Broken ECU - 1989 BMW 325i
Answered by David
If your ECM is failing (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-engine-control-module-ecm) or has failed, it shouldn't be extremely difficult to find a good shop to rebuild or replace them. There are a number of electronic rebuilders who rebuild ECMs (w/warranty). Also, there are a number...
Should I purchase.
Answered by Tim
Hi there: As the owner of a 2008 BMW 128i convertible with 100,000 miles, I understand some of the benefits of having that type of 'weekend cruiser' in the garage. In general, BMW's have a few common issues that tend...
Hello there, my 2005 BMW 525i is not starting but its cranking. I've also noticed clicking sound near at the turbo.
Answered by Marvin
Hi there. If the fuel pump relay is getting hot, then check the condition of the fuel pump (https://www.yourmechanic.com/services/fuel-pump-replacement) when the key is on. If there is no sound at the fuel pump (like a hum), then the fuel pump...
Transmission Position P May not be Possible is the message i get when i start my car and the car would not move.
Answered by Robert
Hi there. If you are getting this message it is typically because the electronic shifter is failing. Most of the time this occurs because of something that has been spilled in the center console. Some of the time the shifter...

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Most recent BMW 840i recalls

BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

Manufacturer’s report date:
September 26, 2019
NHTSA campaign ID number:
19V684000
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