So my wife's '08 320 has failed to start two times now in the last month. Both times after waiting about five minutes the GL started but it took a long time to crank, >5 seconds. Dealership states the low pressure fuel pump was drawing too much current and it's being replaced. Thank God for the extended warranty.
Anyone else heard of this issue?
Bish

 

awfully sounds like a clogged fuel filter... they do clog _a_lot_ and when they do they exhibit the exact behavior- will not start, but if sits for a bit it will after some cranking. once it starts - it will run.

a faulty pump (not able to achieve working pressure) will not maintain the engine running at all or will choke at higher rpms.

never heard of the low pressure pump (or the high one for that matter) going bad on the cdi motors... but there is always a first i guess. if the pump truly went bad at anything less than 250k miles - it is prolly the quality of the fuel ....

 

Thanks for your thoughts. Apparently they found that the fuel pump in the tank was drawing way too many amps when it was tested and parked at the dealership so it's been replaced. We have followed the MB recommended maintenance to the letter so hopefully the fuel filter has been replaced as per the recommendations. Btw the GL just turned 4 years old and has 57K miles currently. The 2 year/25K extended warranty was well worth the money it seems.
Bish

 

I have caught the dealership forgetting to service the adblue tank despite charging me for it and forgetting to replace the fuel filter.