Half yellow Engine light CC-ID 29, no fault code

Skip Hudson · 10-06-2012, 03:29 PM

My 2009 335i sport package, which is fantastic, got a 1/2 yellow engine light yesterday- limp mode. Turbos blowing through wastegate. Fault clears on shutdown/startup but re appears when more than part throttle (calling for boost). On board computer indicates a CC-ID 29 which Bentley's says DME, engine fault, reduced power. Inexpensive scanner says no faults recorded. Car runs, but doesn't GO. Clearly no boost.

Taking to dealer next week, still under maintenance and warranty. Concerned that the dealer may struggle if there is no code.

Anyone have any ideas?

Thanks.

Skip Hudson

joec500 · 10-06-2012, 05:45 PM

The dealer's diagnostics tools can see codes a standard obd2 scanner cannot see. It could be a bunch of things. I am sure your dealer had seen the issue as the the N55 motor has been on the road for a long time

Skip Hudson · 10-18-2012, 06:46 PM

You are absolutely correct. The Technician determined the problem was leakage in the Turbo to Throttle Vale plumbing and replaced the right and left side Charge Air Line. The Intercooler was ok. All under Warranty!The car runs great. Thanks. Skip

eg9_dc2 · 10-19-2012, 07:19 PM

hey i got a 29dc code on my car....I dont know what diagnostic tool he used but i assume if he could see the 29dc code he could see any other codes that the dealers can see too..or am i wrong? it was the only code he gave me. (ive researched the code etc but just wondering if its possible thiers more codes that he wasnt able to read on thier?)

10-06-2012, 03:29 PM	#1
Skip Hudson Registered 4 Rep 2 Posts Drives: 335i Join Date: Oct 2011 Location: Florida iTrader: (0)	Half yellow Engine light CC-ID 29, no fault code My 2009 335i sport package, which is fantastic, got a 1/2 yellow engine light yesterday- limp mode. Turbos blowing through wastegate. Fault clears on shutdown/startup but re appears when more than part throttle (calling for boost). On board computer indicates a CC-ID 29 which Bentley's says DME, engine fault, reduced power. Inexpensive scanner says no faults recorded. Car runs, but doesn't GO. Clearly no boost. Taking to dealer next week, still under maintenance and warranty. Concerned that the dealer may struggle if there is no code. Anyone have any ideas? Thanks. Skip Hudson
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10-06-2012, 05:45 PM	#2
joec500 Brigadier General 133 Rep 3,049 Posts Drives: it has 4 wheels Join Date: Jul 2008 Location: Los Angeles iTrader: (11)	The dealer's diagnostics tools can see codes a standard obd2 scanner cannot see. It could be a bunch of things. I am sure your dealer had seen the issue as the the N55 motor has been on the road for a long time __________________ 2007 E92 6MT SGM: MusicarNW Level 2, Procede Rev 2.5, FFTEC/Vishnu LPFP with Flexfuel Sensor and Flash, M3 Offset V701's, WaveTrac LSD, Michelin PSS, Downpipes, M3 Control Arms, TCKline D/A Suspension, LCI Tail lights, Lux AE's, ER Charge Pipe, DCI's, Mtech Front and Rear, M3 Sideskirts, HPF Stage 1 Clutch
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10-18-2012, 06:46 PM	#3
Skip Hudson Registered 4 Rep 2 Posts Drives: 335i Join Date: Oct 2011 Location: Florida iTrader: (0)	2009 335i 1/2 yellow engine light You are absolutely correct. The Technician determined the problem was leakage in the Turbo to Throttle Vale plumbing and replaced the right and left side Charge Air Line. The Intercooler was ok. All under Warranty!The car runs great. Thanks. Skip
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10-19-2012, 07:19 PM	#4
eg9_dc2 Private 2 Rep 59 Posts Drives: 335i Join Date: May 2012 Location: uk iTrader: (0)	hey i got a 29dc code on my car....I dont know what diagnostic tool he used but i assume if he could see the 29dc code he could see any other codes that the dealers can see too..or am i wrong? it was the only code he gave me. (ive researched the code etc but just wondering if its possible thiers more codes that he wasnt able to read on thier?)
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