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Pro demand has a TSB up
Reference Number(s): SI B12 25 13, Date of Issue: February, 2014
BMW : F30 (3 Series Sedan), F32 (4 Series Coupe); With the N20. N26, N55 engines and M Sport Package option 0337 produced from 7/2012 to 12/2013
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There could be any of the following faults stored depending on the conditions present at the time.
DME
- Fault 1A2108: Electric fan, self diagnosis, interval stage 1: Minor fan fault
EGS (also probably set)
- Fault 421722: DME/DDE interface: Forced upshift due to thermal engine protection request
IHKA (possibly set without DME or EGS faults)
- Fault 801224: Air conditioning compressor: Shut-down due to excess pressure in refrigerant circuit
- Fault 801228: Blower output stage: Blower output reduction due to power management
The Service Engine Soon lamp (MIL) would not be illuminated in these situations.
CAUSE
1. A DME software error in the control of the 850W electric fan over-boost or high speed function.
2. The electric cooling fan design was not robust enough for continuous over-boost or high speed operation.
CORRECTION
1. All other engine related faults must be diagnosed using ISTA/D and resolved prior to proceeding.
2. Replace the fan housing with 850W electric fan.
2.1. The improved parts were introduced into production at the end of November 2013 and can be identified by the index number of '04' or higher on fan label.
3. Program the vehicle using the latest version of ISTA/P.
PARTS INFORMATION
PN - 17427640513 x 1
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It continues to list the warranty information and what the labor codes are.
Looks like they finally gave us a TSB but well past my warranty. Think they will own up to it and flash it for me?
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