gassygassy
Member
I am an old owner of a ?1983 W123 2 litre petrol - I suppose it has to be petrol, no one was making 2 litre diesels then, even the london taxi was 2.2.
I have had lots and lots of 'old' Mercedes, usually W124s I bought cheap from round the back of the Mercedes dealer on the Isle of Man so I know a few things about them such as how well made they are and so on. Also I know that you do not need to buy a new fuel pump relay for petrol 124s, the fault is that Bosch can't be bothered to make them properly. When yours stops running suddenly, it is probably the fuel pump relay behind the starter battery. Just remove the relay, prise its cover off and you will see cracks in the printed circuit where the actual relay contacts are supposed to be soldered on to the pcb. Just re-solder them and off you go happily never to repeat the sudden engine cut out.
There, did you all know that already or have I learned you sumthing?
Until recently I had a V70 Volvo and when the third thousand pound bill loomed for false fault diagnosis by incomptent garages loomed its ugly head I dumped it and said to myself I am going to get a car with No Computers. Hip hip hooray. This W123 has no electric windows operated by computer, a sunroof not operated by a computer, lights and wipers which work off switches - in fact about the only electronics that Faraday would not understand are . . . .eh . . . . nothing.
Anyway until today it ran like a dream. I think I need a new ignition coil to replace the original-looking one. It hasn't even done 200,000 miles yet. Nearly, at 195,872 but you would expect a coil to run for a full 40 years and 200,000 miles before packing up wouldn't you? You wouldn't? Oh dear.
I am trying to find out if it has a ballast resistor in series with the IGN supply to the coil, before I buy a new coil. Do they all have a ballast resistor, or did some have and some not have the resistor?
I have had lots and lots of 'old' Mercedes, usually W124s I bought cheap from round the back of the Mercedes dealer on the Isle of Man so I know a few things about them such as how well made they are and so on. Also I know that you do not need to buy a new fuel pump relay for petrol 124s, the fault is that Bosch can't be bothered to make them properly. When yours stops running suddenly, it is probably the fuel pump relay behind the starter battery. Just remove the relay, prise its cover off and you will see cracks in the printed circuit where the actual relay contacts are supposed to be soldered on to the pcb. Just re-solder them and off you go happily never to repeat the sudden engine cut out.
There, did you all know that already or have I learned you sumthing?
Until recently I had a V70 Volvo and when the third thousand pound bill loomed for false fault diagnosis by incomptent garages loomed its ugly head I dumped it and said to myself I am going to get a car with No Computers. Hip hip hooray. This W123 has no electric windows operated by computer, a sunroof not operated by a computer, lights and wipers which work off switches - in fact about the only electronics that Faraday would not understand are . . . .eh . . . . nothing.
Anyway until today it ran like a dream. I think I need a new ignition coil to replace the original-looking one. It hasn't even done 200,000 miles yet. Nearly, at 195,872 but you would expect a coil to run for a full 40 years and 200,000 miles before packing up wouldn't you? You wouldn't? Oh dear.
I am trying to find out if it has a ballast resistor in series with the IGN supply to the coil, before I buy a new coil. Do they all have a ballast resistor, or did some have and some not have the resistor?
