Quote:
Originally Posted by floydarogers
Quote:
Originally Posted by capt_slow
I believe BMW is using the same Bosch pump that VW and some other manufacturers used in their modern diesels.
On the VW TDIs, the HPFP is prone to self-destruct and pollute the entire fuel system with metal shavings from the worn cam+roller assembly. Discussions online say poor diesel quality in the US was a contributing factor. It was never fixed and only a extended warranty was offered.
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That isn't the whole story. If you read the government website that reports on proposed recalls and investigations, around 90% (going off memory here) of the TDI failures were tracked to miss-fuelings by the owner with gasoline. That's the reason that no redress was offered.
All BMW diesels in the USA/CA have miss-fueling interlocks to prevent that, and there have been few cases of HPFP failures that trash fuel systems. |
That 90% figure seems a bit high, but misfiling definitely causes the pump to fail. One of the TDI boards has a tracker with members who had their pumps fail and a good chunk of them failed out of the blue.
Just saying BMW seems to be following VW in offering a extended warranty on the HPFP.