Swirl flap design fault on BMW 730d

What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks

Swirl flap design fault on BMW 730d

Last year at 70,000 careful miles several swirl-flaps came adrift on my BMW 730d and one went through the engine into the turbo.

Inlet manifold and turbo replaced, one set of valves and piston changed. BMW paid for parts and cost to me £2.8k. This appears to be a design fault. Car appeares to run fine now, but I have lost confidence in the engineering. Is there anything that can been done, driving or maintenance, to prevent a recurrence?

Asked on 24 January 2012 by Mike WB

Answered by Honest John

Yes, it is a design fault affecting engines from about 2002 to about 2004. Should have been rectified as part of the fix as does not seem to occur with post 2004 engines.

Tags: technical issues faults swirl flaps

Similar questions

Why is my car having issues since I used Redex petrol cleaner?

When I first start my 2001 Ford Mondeo in the morning it is great, however when the engine warms up I start having problems. It doesn't matter what gear I'm in, whilst trying to accelerate it jumps forward....

Is my Zafira a write-off?

I've been told the following about my Zafira by a vaxhuall garage: Fault on inlet manifold and noisy on initial start up –suspect internal swirl flaps have collapsed and possible engine damage Vehicle...

Vectra diesel feels as though it is running on three cylinders

Bio have a 53 plate Vectra CDTI. It seems to feel as if it is running on three cylinders, but seems to clear when you put your foot down. There are no fault codes when plugged in and the chap that plugged...

Related models