Question 1

What is N47 Timing Chain Failure on the BMW 3 Series (E90/E91/E92/E93)?

Accepted Answer

The rear-mounted N47 chain can stretch and snap, taking out the engine. Early units suffered from sharp crankshaft sprocket teeth (Recall 14V054). It is the key risk on mainstream 318d and 320d cars built in the late-2000s.

Question 2

What is Electric Water Pump Failure on the BMW 3 Series (E90/E91/E92/E93)?

Accepted Answer

Petrol six-cylinders use an electric water pump that can fail with little warning, pushing the car into limp mode or overheating within minutes.

Question 3

What is FRM (Footwell Module) Failure on the BMW 3 Series (E90/E91/E92/E93)?

Accepted Answer

Low voltage, jump starts, and age can corrupt the footwell module, leaving the car with lighting and window faults that can cause an MOT failure.

Question 4

What is High Pressure Fuel Pump (N54 Engine) on the BMW 3 Series (E90/E91/E92/E93)?

Accepted Answer

Twin-turbo 335i models suffer HPFP failures that cause long cranks, misfires under load, and limp mode, especially on cars that have been tuned hard.

Question 5

What should I check when buying a used BMW 3 Series (E90/E91/E92/E93)?

Accepted Answer

Budget for suspension, brake pipe, and water-pump work on cars still wearing old run-flats or original arms

Question 6

What should I check when buying a used BMW 3 Series (E90/E91/E92/E93)?

Accepted Answer

If it is a 320d or 318d, demand chain-proof paperwork rather than trusting a quiet engine on the day

Question 7

What should I check when buying a used BMW 3 Series (E90/E91/E92/E93)?

Accepted Answer

Check every exterior light, window, and mirror because FRM and wiring faults are common on ageing cars

Question 8

What years was the BMW 3 Series (E90/E91/E92/E93) made?

Accepted Answer

The BMW 3 Series (E90/E91/E92/E93) was produced from 2005 to 2013.

BMW 3 Series (E90/E91/E92/E93)

3 Series (E90/E91/E92/E93) Reliability & Common Faults

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