Hi. I have a mercedss benz 300ce 1992. I was driving and suddenly my car turned off. T think the problem is the spark but, I dont know what's the first i have to do to find the problem. I need Your help!!!

probably the crank position sensor. do a search

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1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


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Do You know how can I test that sensor?

oscargav, our daughter's 1991 300CE's engine suddenly shut down while she was driving 60mph on a local expressway. Turned out the coil had failed. Hope your problem is that simple.

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Fred Hoelzle

no way to test a cps....

Fred---- i am not sure if one bad coil would cause that problem...

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1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


[/SIGPIC]

If you suspect the absence of spark, you obviously need to check for spark.

This is the tool you need to check for spark. It is fairly cheap but very useful. I use it to check for spark in lawn mowers.

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Ben
1987 190d 2.5Turbo

Lee, a 1991 300CE has only 1 coil (mounted on the left front inner fender). That 104 engine is not like the 1994 & 1995 104 engines with the 3 coil packs atop the spark plugs.

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Fred Hoelzle

For whatever reasons, the EZL's (ignition modules) on the early M104 (m103.5) engine die more often than any other car from the era. Plus they are a 1 year only ignition module so they are 10x the cost of a standard M103 EZL. Make sure you have spark coming from the EZL.

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http://i193.photobucket.com/albums/z...-RESIZED-1.jpg
1991 300E - 212K and rising fast...

The EZL failed on my 92-300CE, it was a little over $1,000 about three years ago.

Ouch! I wonder why this is? The M103 was already a high revver, and the M104 CIS revved to nearly 8000?

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http://i193.photobucket.com/albums/z...-RESIZED-1.jpg
1991 300E - 212K and rising fast...

Thank you for Your help. I would like to know if YOu can tell me how can I check is the spark is coming from the EZL...

I already change the coil. and my car still not start. a friend told me that the alarm system could be the problem. My car has installed a Viper 350HV.

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How about FIRST you determine whether or not you have spark to the plug. THEN you worry about why. What makes you think you have no spark? What kind of tests are you performing?

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1989 300E 144K

I insert a metal into the cable (like a screw driver) and I try to start my car, You must feel some impulses if the spark is there. I did that with may other cars and it works. im based on that. im not a mechanic but im try to fix my car.

I insert a metal into the cable (like a screw driver) and I try to start my car, You must feel some impulses if the spark is there. I did that with may other cars and it works. im based on that. im not a mechanic but im try to fix my car.