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Thanks for the replies. I am sure the rotor is turning and the plug I'm looking at is earthed, I know it's a good earth since there is a spark when I turn the key off. What I did was clamp the plug to the side of the engine. I will have another look at all the wiring today. In more detail, I am...

Hope one of you gents can shed light on this problem. I am trying to test a 220 engine from a 1964 220SE w111. I'm using the electrics from another old Merc to supply the spark. So, I've basically wired up the starter and coil from the other car. I find that I can see a spark on the plugs when...

Hi, that was a good shout about the metering head. I got a mate to help and we got it started again. I pushed on the metering head plate with a spanner and he was holding the pedal to try to keep it turning over. We found that we could get it to idle constantly by holding the plate down in a...

Thanks for the replies I'm adjusting the mix because I know it was too rich. There is meant to be a way to measure if it is right using a multimeter. You plug into a point on the diagnostic port and read the cycle it outputs. The duty cycle setting on the meter should be about 50% for the...

Hi all, been searching the web for someone who's seen this problem before. I was adjusting the air fuel mixture on my 300SE and the engine cut out when pushing the allen key down on the spring (adjusting screw on top of metering head). Now the engine will not start. I think I might have made the...

I replaced the Amplifier/ECU today and now it is working properly. So, all I needed in the end was new wiring, new servo, and replacement ECU, i.e. the whole system replaced except for the stalk.

Made some progress. I now have some cruise action but it's not keeping the speed smoothly. It's like kangaroo drive! I have installed new cruise wiring and replaced the servo. When I replaced the wiring, still no joy, but when I then replaced the servo, I got some action. I had left the old...

Hi, I'm hoping someone might know something about my cruise control problem. The cruise used to work but then stopped. I have tried putting in a known good amplifier/ECU under the dash at the drivers side but still nothing. I've got a replacement servo but I don't think this is the problem. I...

Thank you very much for your help with this

Does anyone know if there were changes to the interior of the w126 from early to late models? I am looking to replace an interior of a 1981 280SE and I need to know if the door cards and seats from a later model (1989 420SE) will fit. They certainly look the same but I wouldn't want to buy the...

I had a look some more today. I adjusted the air fule mixture a bit but I could not get it to run smoothly. I have found that the idle is actually pretty rough. Also, there is quite a bit of smoke coming off the engine. Coming out of the top.

Yes, I hope the problem is not the engine. I had a look today. The spark plugs are new and there is a spark from all four. I pulled the throttle until it dropped. The engine revs up to a point then just drops back down to a slower idle. Then, if you try to pull the throttle more, it starts...

Hi! I've had a w123 230E for a while now that I got cheap. I was told it needed a new fuel distributor and it took me ages to find the right one (it's the old one with no electrical regulator). Finally got it fitted but the engine has more problems than that. Whenever I push the accelerator so...

I tried removing the ABS warning light from the dash to pass the MOT but the guy spotted it and so it had to be fixed. I found that the ABS ring was split. I got a new one from UK Parts Direct. It was £20 but I couldn't find the part anywhere else. It's quite easy to release the bolt holding...

I found it! It was the oil level sensor at the sump

Thanks! I think I already plugged in the oil pressure sensor (near the filter). It is black plastic, whereas this one is a rubbery feel and a sort of peach colour. Tomorrow, I will look for a part number on the thing, maybe I could Google it and find out more. For the vacuum tube, I had...

Anyone?

Hi Guys, I would much appreciate it if someone can identify two connections that I seem to have forgotten during my job replacing the engine in my 300SE. One is a vacuum tube from the top of the engine I can't remember where this goes and I didn't label it. The other is a cable shown here...

I have recently purchased this vehicle but found that there are too many problems to get it to pass it's next MOT so have decided to dismantle it. Many parts are in very good condition, especially the interior (dark blue). The car is white and some panels are good, especially the doors. Anyone...