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Matt, Mechanical Engineer
Category: BMW
Satisfied Customers: 23085
Experience:  BEng hons Mech engineering, in auto industry 22 years
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I have a warning light at start-up on my 735li saying

Customer Question

i have a warning light at start-up on my 735li saying dynamic drive inactive, is this just likely to be a case of topping up some fluid or worse?
Submitted: 1 year ago.
Category: BMW
Expert:  Shantal-Mod replied 1 year ago.
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Expert:  Matt replied 1 year ago.


its worth checking the car fluid levels, oil, coolant, brake fluid and power steering

but this can also be faulty steering angle sensor, and an alternator failing which causes overvoltage in the system. The ARS (dynamic drive) module always stores an overvoltage fault if this is the case.

The only accurate way to diagnose is with a bmw specific scan tool, this will be needed to read the fault codes, from there the faulty component can be determined and replaced.

and if you've fitted different sized wheels and / or tyres then this too can create this fault

Expert:  Matt replied 1 year ago.


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