Thx its automatic it cranks but no start it was running great. no been 2 week won't startThe two replies are the about the dumbest replies I’ve read in a while. And I’m really not trying to be rude, or pick a fight. But come on.
For starters, we need a bit more info:
Manual or auto trans?
Does it just crank, but no start, or no crank at all?
Was the car operating flawlessly previously?
Did it actually start eventually?
I don't wish to depress you, but, I had similar during a misery period from July 2019 to June 2020. I blew 3 EZLs after installing new coil, cap, rotor, wires and plugs.Thx its automatic it cranks but no start it was running great.
I couldn’t agree more.The two replies are the about the dumbest replies I’ve read in a while. And I’m really not trying to be rude, or pick a fight. But come on.
sorry to sound stupid but what a ezlI don't wish to depress you, but, I had similar during a misery period from July 2019 to June 2020. I blew 3 EZLs after installing new coil, cap, rotor, wires and plugs.
After the 3rd failure, we stripped out all the new stuff and re-installed new MB parts except the wires that are now the 12(?) year old Beru wires. The new Beru wires just would not click down nicely on to the plugs.
We also checked and cleaned all the earth connections we could.
And replaced the alternator and starter motor with Bosch reconditioned "new" units. This was prompted by a vague impression that these EZLs were being killed on start-up. Did I here it fire once before no-start? I really couldn't be sure.
And put a new MB Crank Position Sensor in, although these are very reliable and long-lasting.
It is now October 2021, 15+ months after the last dead EZL. Have I cured it? Maybe. But I cannot be 100% sure.
And, in all cases, the car was running like new before death.
I hope this is not your problem.
By the way, which engine, M103 or M104?
All the best.
It is the ignition control module. It looks like this:what a ezl
Thx RayIt is the ignition control module. It looks like this:
View attachment 2716676
They come in various flavours and prices, depending on the application? Complex ones as in this picture have 8 pins in those two sockets indicating knock sensors, and probably more.
EZLs are found in cars that do not have integrated engine management, the fuel delivery and ignition being handled by separate systems, albeit with some communications between them.
EZL may be the wrong abbreviation, strictly speaking, as EZL (Elektronische Zundanlage) translates to Electronic Ignition System. But who cares?
Yes I agree, but if you are starting the car to only move it forward or backwards one or two car lengths (out of the carport or garage). Surely it's better to leave it running for a few minutes rather than switching it off after starting from cold and running for 5 or 10 seconds to perform the vehicle shift. It's not something I would do every day (long idle), and yes, starting the car and driving off in a slow and consistent manner is the best if you intend on actually driving the car at that time. But cars are not always started to be actually driven, as in the case with the OP. OP started the car to back out the carport then turned off and came back 10 minutes later only for it to not start.The above recommendation should not be followed on any car.
The engine should be warmed up as quickly as possible - that happens when you drive the car.
If you go outside in winter and stand still you won't get warm. If you start to chop wood for your fireplace you will warm up.
I have sympathy but not much help. I have a i990 300E, M103 engine with same problem. Mine was warm and running perfect, the next morning no spark at the coil. The Crankshaft Position Sensor had been just replaced, also the distributor. After no spark I replaced the coil and what they call the EZL with a used unit from ebay. All I could afford. Still no spark. My right rear tail light and brake light are not working. I have read that later1992 models will not start if the brake lights are not functioning. Not sure if 1990 had this feature. You might check yours. I have a mechanic friend coming by later this week to give me some help. Maybe we can solve both of our problems by sharing info.I have a 1990 300sl that I backed out of carport shut off for about 10 min tried to start turned over but no start. without shop manuals I'm lost can anyone help. Thanks Ralph