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#1
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Crank Position Sensor - ML320 Replacement procedure
I have a problem where the car will start fine but will stall if left to idle for more that about 5 minutes. Once it has stalled it won't start again for anything from 10 to 30 minutes. The garage working on the problem has replaced the O2 sensors and the fuel pump relay and has now told me that the ECU (Engine Control Unit) is faulty. I get the feeling that they are just replacing parts and hoping for the best.
From what I have read here it seams to me that the problem could well be the Crank Position Sensor. I have read that there is a thread that details how to replace this sensor but I can't seam to find it. If anyone knows how this is done, can they please let me know the process/procedure? Do I need specialized tools? Is it easy to get to/find? |
#2
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Located behind drivers side cylinder head on flywheel flange of engine block. Requires inverted torx T8 socket. List is $100
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#3
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Thanks, is this an easy job or do you recommend that it be done by a dealership?
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#4
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M.B.Doc
I also have a stalling problem and have in mind to replace the crank postion sensor on my 3.2 104 engine (late 1995). The sensor at the rear of the engine on the flywheel housing looks very inaccessible. Will removing the starter assist ? Do I need a special tool, and if so what tool ? Thanks in anticipation of your reply. Regards |
#5
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It is a farily easy job to do, You'll need that inverted torx socket as he said, 1/4" swivel joint and long 1/4" extension. It also helps if you have skinny arms!
You were correct to suspect the crank sensor, 8 or 9 times out of 10 its the culprit for engines stalling out. If you compare its magntic pull to the new sensor, you'll probabaly find thats it is quite diminshed. edit: that was for the first guy, I'll have to take a closer look at a 104 for the other one.
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1980 500SE/AMG Euro 1981 500SEL Euro 1982 380SEL 1983 300TD 1983 500SEC/AMG Euro 1984 500SEC 1984 300TD Euro 1986 190E 2.3-16 1986 190E 2.3 1987 300D 1997 C36 AMG 2003 C320T 4matic past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350 Last edited by Johnhef; 04-14-2005 at 07:34 AM. |
#6
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is crank pos sensor same as tacho or rpm sensor?
this may be a dumb question but is it the same thing as the RPM or tacho sensor? K
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#7
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Thanks for the help - I'll give it a try and report back.
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#8
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Johnhef
Look forward to your feedback on fitting a crank position sensor to a 104 992 engine. Need to know special tools required etc. Many thanks in anticipation. Regards |
#9
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I folded and took the option of having it done by the garage. On the positive side, it seams, (only been 1 week), to have solved the problem with regard to the stalling - so I am one again a happy chappie
Thanks for the advice |
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