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Mercedes Benz A140 1.6 2005 - Engine management light on after service - Fixed #

Posted by James Mccallum on June 30, 2010, 11:11 pm

Year of Manufacture *: 2005
Engine Size and Code *: 1.6
( Optional ) Scanner Used: Sykes
( Optional) Fault Codes: P0102 MAF sensor low input

Hi all,
Vehicle returned after service at another garage, Light on dash. Garage took it back and cleared code but it returned. I code read system which gave me above code. I do not have access to current data so I cant check maf efficiency. I scoped signal and cant see a problem. Another code for injector keeps coming up to, just wondering if a trapped wire would give this as well? I will see the car again on Friday. Any suggestions, the air mass is quite expensive for a substitute test. The car belongs to ex father in law.
Thanks in advance
James

Re: Mercedes Benz A140 1.6 2005 - Engine management light on after service #

Posted by Piotr Sokolowski <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT1848' width='330' height='300' border=0 style='border:none;'> on July 1, 2010, 8:33 pm, in reply to "Mercedes Benz A140 1.6 2005 - Engine management light on after service #"

as far as I know the air flow meter is integrated part of ecu. This is a link:https://www.actronics.eu/

Link: www.pandpauto.eu

Re: Mercedes Benz A140 1.6 2005 - Engine management light on after service #

Posted by james mccallum <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT5583' width='330' height='300' border=0 style='border:none;'> on July 1, 2010, 9:56 pm, in reply to "Re: Mercedes Benz A140 1.6 2005 - Engine management light on after service #"
James McCallum

Hi Thanks for the reply. This one has a seperate MAF. Maybe they changed it in later models. I am hoping to get technical information tomorrow and I need to gain access to full current data. Hopefully borrow one or get a mobile guy to read it for me then I can decide what to do. I never do mercs normally, Mainly VW & Hyundai.
Thanks anyway,
James

Re: Mercedes Benz A140 1.6 2005 - Engine management light on after service #

Posted by George Cameron <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT5426' width='330' height='300' border=0 style='border:none;'> on July 2, 2010, 11:16 pm, in reply to "Mercedes Benz A140 1.6 2005 - Engine management light on after service #"
George Cameron

Have you check intake system for leaks maybe they've not reconnect a vacumn pipe etc

Fixed #

Posted by James McCallum on July 4, 2010, 2:26 pm, in reply to "Mercedes Benz A140 1.6 2005 - Engine management light on after service #"
Message modified by board administrator July 5, 2010, 2:02 pm

BAD CONNECTION GIVING INTERMITTENT PEFORMANCE CAUSEING MIL TO COME ON. THANKS FOR ANY HELP OFFERED.
JAMES

Fixed #

Posted by Andy Evans on July 4, 2010, 7:56 pm, in reply to "FIX : Mercedes Benz A140 1.6 2005 - Engine management light on after service #"
Message modified by board administrator July 5, 2010, 2:02 pm

"BAD CONNECTION GIVING INTERMITTENT PEFORMANCE CAUSEING MIL TO COME ON"

go on, give us a clue, where was it?

Andy E

Fixed #

Posted by James McCallum on July 4, 2010, 11:10 pm, in reply to "Re: FIX : Mercedes Benz A140 1.6 2005 - Engine management light on after service #"
Message modified by board administrator July 5, 2010, 2:03 pm

Hi,
This one has a seperate MAF sensor on inlet pipe, I scoped it again and it looked fine, so I wiggled the wires and the pic changed. I took plug off and and tightened connections for MAF sensor, retested and it seemed fine. Cleared codes and took for test drive, ok. Ex father in law has told me he took car out today and did 30 miles and light is still out and it is running fine.
HTH James

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