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Glow Plug Help
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03-12-2014, 11:11 AM | #1 |
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Drives: 2009 BMW 335d
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Glow Plug Help
My buddy has this issue. Looks like glow plugs #1 and #5 need to be replaced. Is there a diagram of where they are located on our 335d vehicles?:
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03-12-2014, 11:28 AM | #2 |
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03-12-2014, 01:29 PM | #3 |
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4A5F - P066D
Information saved in DDE Fault code 4A5F - P066D Fault text DDE: Glow control unit: Glow control unit, output stage, cylinder 2, faulty Fault description The preheating control module detects a defective output stage for activation of the glow plug at cyl. no. 2. Condition for fault identification Test condition: The LIN message is transmitted every 500 ms. Voltage condition: The LIN message is transmitted every 500 ms. Condition for fault memory entry Debounce (1200 ms) Action in service Replace glow-plug preheating control module. Replace glow plug 1. Fault effect and breakdown warning Poor starting at low temperatures. Proceed to the nearest BMW Service facility. Driver information Warning light: MIL Service instruction Remove glow plugs with engine warmed to normal operating temperature to avoid damage to the cylinder head. © 2014 ALLDATA LLC. All rights reserved. Terms and Conditions 4A1F - P067F Information saved in DDE Fault code 4A1F - P067F Fault text DDE: Glow control unit: Glow control unit, output stage, cylinder 6, faulty Fault description The preheating control module detects a defective output stage for activation of the glow plug at cyl. no. 6. Condition for fault identification Test condition: The LIN message is transmitted every 500 ms. Voltage condition: The LIN message is transmitted every 500 ms. Condition for fault memory entry Debounce (1200 ms) Action in service Replace glow-plug preheating control module. Replace glow plug 1. Fault effect and breakdown warning Poor starting at low temperatures. Proceed to the nearest BMW Service facility. Driver information Warning light: MIL Service instruction Remove glow plugs with engine warmed to normal operating temperature to avoid damage to the cylinder head. © 2014 ALLDATA LLC. All rights reserved. Terms and Conditions
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03-12-2014, 01:32 PM | #4 |
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RELATED TSB ON GLOW PLUGS:
SI B13 12 10 Fuel Systems January 2011 Technical Service This Service Information bulletin supersedes SI B13 12 10 dated December 2010. [NEW] designates changes to this revision SUBJECT Various Glow Plug and Glow Plug Control Unit Faults Stored in DDE MODEL E90, E70 with M57Y engines [NEW] SITUATION The vehicle may exhibit a long crank or rough idle in colder ambient temperatures. The Service Engine Soon lamp is on. One or more of the following faults can be stored in the DDE: ^ 4A1F combustion preheating control unit output stage cylinder 1 faulty ^ 4A2F combustion preheating control unit output stage cylinder 2 faulty ^ 4A3F combustion preheating control unit output stage cylinder 3 faulty ^ 4A4F combustion preheating control unit output stage cylinder 4 faulty ^ 4A5F combustion preheating control unit output stage cylinder 5 faulty ^ 4A6F combustion preheating control unit output stage cylinder 6 faulty ^ 494A combustion preheating control unit, diagnostic feedback CAUSE Internal fault with the glow plug control unit CORRECTION If one or more of the above faults are stored, replace the glow plug control unit and all six glow plugs. Refer to Repair Instructions REP12 21 520 (glow plug control unit) and REP12 23 505 (glow plugs) for component replacement. PARTS INFORMATION WARRANTY INFORMATION © 2014 ALLDATA LLC. All rights reserved. Terms and Conditions
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03-12-2014, 01:40 PM | #5 |
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You rock Brad. Thanks man.
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03-12-2014, 05:05 PM | #7 |
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Sure since I don't know the year of you 335, I'll use a 2011 for the search, the codes are mostly all the same.
PM with the code description sent.
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03-12-2017, 08:49 PM | #8 |
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Can you look up this too:
Motor Control: Engine / Motor Glow plug Code: 004A7E Glow plug Code: 004A09 Message failed Code: 004A74 message fault Code: 004A79 Receive news of IBS LIN-bus communication Code: 0049A5 Any thoughts or suggestions? It would not clear the faults on a restart via Carly. It would clear the code while the car is on.
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05-01-2019, 01:11 AM | #10 |
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Lin-bus codes are usually due to the glow plug module. Replace it.
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05-01-2019, 05:33 AM | #11 |
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Yes, the glow plug module was swapped. And five months later, I sold the car. I was happy with cash in hand and seeing the taillights turn the corner.
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05-07-2019, 01:21 AM | #12 |
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Thanks for the reply!
Your solution was also backed up by ISTA-D which I just obtained this week... Replace the module it is. I just did the CBU, so I will have to take the intake back off... |
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05-07-2019, 07:40 AM | #14 |
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Can anyone confirm if code 4A0F indicates a failing glow plug control module? I tried a google search on the code but didnt come up with anything definitive.
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05-07-2019, 11:16 AM | #15 |
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i could be wrong, but i think the "0" indicates the module. #1,2,3,4,5,6 indicates glow plug cylinder location.
from what i have noticed in the past with these cars if you are getting a glow plug then also check your coolant temps. FWIW so far with any of these codes i have not actually found a bad glow plug. replacing the module fix "bad" glow plugs. i Ohm them out and all read the same.
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05-07-2019, 11:58 AM | #16 | |
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Quote:
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05-08-2019, 11:45 AM | #17 | |
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Quote:
a glow plug is a simple heating coil. few things when reading them... for the most part as long as it they all read about the same or doesn't read dead short or open. if one is bad it should be clearly out of whack to the rest of them.. if you read the comments in my video linked you i tell someone how to get a glow plug reading with the intake on from the wire harness along with what wires are to which glow plug.
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