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1985 BMW 535i 3.5L Excessive Emissions, Poor Idle Quality, Surge
Posted to European Driveability on 5/8/2003 8 Replies

Hi, got another high mileage NOX failure on the dyno. I suspect a "pattern failure"?

Several Alldata/ BMW TSBs for carboned-up intake valves. Will this cause CONSISTENT (hot or cold) high NOX? Compression is fine--about 125 vs 143 spec.

Gotta be careful on t...

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car Vehicle Data

1985 BMW 535i

VIN WBADC8409F
Engine3.5 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / Bosch Motronic??
EmissionsCa emissions
SymptomsExcessive Emissions, Poor Idle Quality, Surge
OccursAlways, on Accel, Idle
Message Closed w/FIX

car Vehicle Data

1985 BMW 535i

VIN WBADC8409F
Engine3.5 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / Bosch Motronic??
EmissionsCa emissions
SymptomsExcessive Emissions, Poor Idle Quality, Surge
OccursAlways, on Accel, Idle