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Ask sprinkles08 Your Own Question
sprinkles08, ASE Certified Technician
Category: UK Car
Satisfied Customers: 23125
Experience:  ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
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BMW X5 E53 3.0D 2002mod lack of power, will not rev above

Customer Question

BMW X5 E53 3.0D 2002mod lack of power, will not rev above 3000 rpm, no smoke,
JA: How many miles are on the car? Have you been losing oil or coolant?
Customer: 156000 km, oil ok, no coolant warning, must check level
JA: What year is your X5?
Customer: 2002
JA: Are you fixing your X5 yourself? What have you tried so far?
Customer: Trying to figure out whats wrong
JA: Anything else you want the mechanic to know before I connect you?
Customer: Car wouldn't start at first try yesterday
Submitted: 11 months ago.
Category: UK Car
Expert:  sprinkles08 replied 11 months ago.

Hello and welcome to JustAnswer!

There are many things that can cause a loss of power. If it is hitting a lowered rev limiter then most likely the engine controller is seeing an issue that will prevent proper operation and is limiting power for safety or to prevent damage.

The first step in diagnosing the problem is to use a scan tool or code reader to see what fault codes are setting and then testing can be done from there based on that. Do you know what codes are setting?