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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > USA - California > E91 rescue help needed - N52K head rebuild



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      04-18-2026, 10:53 PM   #1
POBEP
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Drives: E70 E90 E91
Join Date: Mar 2016
Location: Christmas Valley, CA

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E91 rescue help needed - N52K head rebuild

I am OO of the 03/2009 E91 LCI, 122,429 miles
Car is in near excellent shape, timely maintenance, Genuine / OE parts only

The only (minor) trouble was failed starter (solenoid) on Feb 17th.

On its 17th birthday the first CEL came on, while en-route at night from SF Bay Area to Tahoe - next 70 uphill in Sierra to my mountain cabin was not fun.

Collected 29CD: combustion misfire cylinder 1
* swapped coils, plugs, injectors - no luck
* compression test showed none in #1 (14 bar in #2-6)

visual revealed burned / failed (exhaust) valve

Given relatively low mileage thinking about having head rebuild.

Anyone here is up for a job or can recommend specialist in SF Bay or Sacramento area?

Alternatively I am happy to tow to SoCal if reputable shop is available

OR, perhaps Sreten is open for new "Project Christmas Valley" ?
I have a donor E90 335d and EU version of 330d 6MT kit ready for a swap (into E91) ...
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