W116 with M119 4,2L Engine (Problems)
Hello Everyone
Few days ago I posted my introduction on the New Member Introductions section and I thought I should introduce myself in this section as well!
This is the introduction of W116/400SE from the Netherlands. Mostly I’m typing on behalf of my father and cousin, since they're the ones behind the Benz project, I was the help. We have been proud owners of a 1974 W116 280S Mercedes-Benz for about 10 years now.
About 3 summers ago, the M110 (2,8L) engine broke down and therefore we decided to restore the car, not so much to its original state because the car got an engine transplantation from a W140 400SE 1991 S-Class. Thanks to this forum and the wisdom/knowledge of its members we've found a lot of helpful information about both cars.
We installed almost everything that was on the W140, including the interior and dashboard cage underneath. The interior has been changed, complete wiring harness, brake pump and cylinder, steering case and axles, cardan axle, differential and so on. Pretty much only the W116 chassis remains the same. We’ve repainted/sealed the inside and underneath the car. Upon finishing, the car might need a little painting on the outside as well! The rims on the car are wintertires, I’ve managed to get a decent set of genuine AMG’s that are going on it for the summer.
The project is nearly finished but unfortunally we've hit a kind of a bump that set us back some time. It's got something to do with the ''limp home mode'' the car has got in. (hard steering, not shifting beyond 1st gear, blocks RPM around 1300).
The first few months nothing was wrong, then all of a sudden it got into the limp mode (has to have something to do with the car not having ABS/ASR – accordingly those wires aren’t connected, therefore the system registers fault codes an puts in in Limp I guess). I read a while ago about driving the car without the ABS/ASR module, which worked at first and the car came out of the limp mode. However, if we do so, the speedometer doenst work, probably because the ABS wheel speed sensors are connected with the module. Even without the ABS module the car got back into limp mode eventually. Is there any way to bypass the ABS/ASR since we don’t need it, but without loosing the speedometer function?
We also checked all the fuses, also the ones on the module (there were 3 fuses in there). We’ve cleaned the Airmassmeter, checked the wires of the throttle body and they were in pretty good shape, no cracks or what so ever. We’ve even changed the lambda sonde last month.
We've had the car diagnosed, they couldn’t get a read out so we did it the analog way(blink codes). At first fault code 16 appeared, which never came back after reset. Now fault codes 27/28 appear even after resetting them, I think it has something to do with the tachocircuit and/or speed sensors. At first, restarting the car / reconnecting the battery like measures seemed to help, now its stuck in there for about a month!
Also it seems the transmission is in some kind of limp/emergency mode, it only shifts when it’s about 2500RPM, and sometimes it immediately shifts into 3rd after first gear. All the oil's and filters have been changed. We’ve checked the kickdown solenoid which seems to be O.K., we’ve unplugged it to make sure that wasn’t the problem. Didn’t help either.
Also the car starts difficult recently, the sparkplugs were all black even though they’re brand new bosch plugs. We've replaced them again, cleaned out all the injectors, tried different ignition coils. All the distributor caps and rotors have been replaced also. It only starts if we pull out the fuel pump fuse and start it, after it’s on we put the fuse back on and it works. All the problems are recent, in the donor car which was damaged a lot from the outside, everything technically worked just fine, in cold starts it started with high RPM around 1100 to warm the car, after min. or 3/4 it went down to about 550. Shifting, revving, acceleration, everything was fine when we tested the car. After we put everything in the W116 still everything worked fine, except for the coldstart and shifting. Upshifting was about 2500RPM, didn’t shift under those RPM’s, coldstart didn’t work anymore either. About a month or 3 later the limp mode problems started. I hope the way I described the problems isn’t confusing, since my English isn’t that good. I’d like to thank everyone in advance for the understanding and help!
I also attached some pictures of the project/car
As the project continuous I'll keep you posted!
I hope I have introduced myself in a proper manner and am looking forward to both share and gain knowledge/wisdom from this forum!
Greetings W116/400SE
PS: there’s a video made about 1 year ago on YouTube, my cousin uploaded it. You can find it by the name of: W116 4,2 V8
Hello Everyone
Few days ago I posted my introduction on the New Member Introductions section and I thought I should introduce myself in this section as well!
This is the introduction of W116/400SE from the Netherlands. Mostly I’m typing on behalf of my father and cousin, since they're the ones behind the Benz project, I was the help. We have been proud owners of a 1974 W116 280S Mercedes-Benz for about 10 years now.
About 3 summers ago, the M110 (2,8L) engine broke down and therefore we decided to restore the car, not so much to its original state because the car got an engine transplantation from a W140 400SE 1991 S-Class. Thanks to this forum and the wisdom/knowledge of its members we've found a lot of helpful information about both cars.
We installed almost everything that was on the W140, including the interior and dashboard cage underneath. The interior has been changed, complete wiring harness, brake pump and cylinder, steering case and axles, cardan axle, differential and so on. Pretty much only the W116 chassis remains the same. We’ve repainted/sealed the inside and underneath the car. Upon finishing, the car might need a little painting on the outside as well! The rims on the car are wintertires, I’ve managed to get a decent set of genuine AMG’s that are going on it for the summer.
The project is nearly finished but unfortunally we've hit a kind of a bump that set us back some time. It's got something to do with the ''limp home mode'' the car has got in. (hard steering, not shifting beyond 1st gear, blocks RPM around 1300).
The first few months nothing was wrong, then all of a sudden it got into the limp mode (has to have something to do with the car not having ABS/ASR – accordingly those wires aren’t connected, therefore the system registers fault codes an puts in in Limp I guess). I read a while ago about driving the car without the ABS/ASR module, which worked at first and the car came out of the limp mode. However, if we do so, the speedometer doenst work, probably because the ABS wheel speed sensors are connected with the module. Even without the ABS module the car got back into limp mode eventually. Is there any way to bypass the ABS/ASR since we don’t need it, but without loosing the speedometer function?
We also checked all the fuses, also the ones on the module (there were 3 fuses in there). We’ve cleaned the Airmassmeter, checked the wires of the throttle body and they were in pretty good shape, no cracks or what so ever. We’ve even changed the lambda sonde last month.
We've had the car diagnosed, they couldn’t get a read out so we did it the analog way(blink codes). At first fault code 16 appeared, which never came back after reset. Now fault codes 27/28 appear even after resetting them, I think it has something to do with the tachocircuit and/or speed sensors. At first, restarting the car / reconnecting the battery like measures seemed to help, now its stuck in there for about a month!
Also it seems the transmission is in some kind of limp/emergency mode, it only shifts when it’s about 2500RPM, and sometimes it immediately shifts into 3rd after first gear. All the oil's and filters have been changed. We’ve checked the kickdown solenoid which seems to be O.K., we’ve unplugged it to make sure that wasn’t the problem. Didn’t help either.
Also the car starts difficult recently, the sparkplugs were all black even though they’re brand new bosch plugs. We've replaced them again, cleaned out all the injectors, tried different ignition coils. All the distributor caps and rotors have been replaced also. It only starts if we pull out the fuel pump fuse and start it, after it’s on we put the fuse back on and it works. All the problems are recent, in the donor car which was damaged a lot from the outside, everything technically worked just fine, in cold starts it started with high RPM around 1100 to warm the car, after min. or 3/4 it went down to about 550. Shifting, revving, acceleration, everything was fine when we tested the car. After we put everything in the W116 still everything worked fine, except for the coldstart and shifting. Upshifting was about 2500RPM, didn’t shift under those RPM’s, coldstart didn’t work anymore either. About a month or 3 later the limp mode problems started. I hope the way I described the problems isn’t confusing, since my English isn’t that good. I’d like to thank everyone in advance for the understanding and help!
I also attached some pictures of the project/car
As the project continuous I'll keep you posted!
I hope I have introduced myself in a proper manner and am looking forward to both share and gain knowledge/wisdom from this forum!
Greetings W116/400SE
PS: there’s a video made about 1 year ago on YouTube, my cousin uploaded it. You can find it by the name of: W116 4,2 V8
