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VT Cranking Issues

gw0071

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My VTII 3.8l (auto tx) has been encountering difficulties upon starting on an intermittent basis lately either requiring exaggerated accelerator pumping or cycling the IGN to OFF. Lately it seems to be the norm when the car has spent the day in the sun with OAT in the low 30's

On occasion the ENG icon illum along with TRAC OFF. Driving characteristics are normal otherwise except when the ENG light is ON - RPM's increase briefly but dramatically when it eventually extinguishes and normal conditions continue

The starter does not seem to be displaying any other consistent fault pattern - it is the original unit, 140000km

From my preliminary investigation its possibly the CAS. While this is relatively simple/inexpensive to do at home I'd prefer to not shot-gun it if not necessary

The battery and spark plugs are new, serviced at 10000km intervals

I haven't been able to find any similar posts - any ideas?
 

BMW328i

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exaggerated accelerator pumping. Please, tell me more....
 

gw0071

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Pumping the accelerator while turning the motor, ignorant of any possible duty cycle limits. Not pretty but does the job
 

Tim Smtih

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just buy a v8 lol
Needle in a hay stack without checking error codes. CAS, DFI module/coils, Starter motor/solenoid, low fuel pressure, could all be possible causes.
 

Kiddo

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