Good day, my name is Lucian. This is my first post here, sadly it is of a problematic nature of my car and i seek your opinions and guidance to aid in resolving the issue.
I will start with some facts about the automobile. It is a MB 300ce coupe produced in 1990 with a five speed automatic transmission (722.5) and 300cc 24v engine (m104.980). Many people who talk to me about the car ask me in irony if i paid money for it, maybe because of the engine size and the rust holes in the rear fender, i don't think much of their stupid inquiries i like my car it's a timeless classic and the rust just makes it look more vintage.
Now on to the bad stuff, the problem I've been having. I think i should start with my last trip. The car starts slow it takes at least five seconds of cranking to get it to idle from a cold start especially in winter. All is ok it shifts as ever, gets up to operating temperature fine so far. Have to make a stop at the market for 20 minutes or so. I get back and restart it, fires right up and the problems start: rough idle, after 5 seconds it stalls, restart it again sounds like it's on it's last breath put it in D take off and it refuses to change up just sits in second gear (the start gear).
Crawling my way to the 2 lane road where everybody is breaking the speed limit and doing over 60 i cross my fingers and hope for the best, i know in my heart it won't let me down it's a Mercedes and it will get me home no matter what.. and besides i know how to "fix" it. All i have to do is turn on the rear window defogger and the heater volume knob to full blast it will magically change gears and keep it from stalling . I can even down shift it from the heater knob if i turn it from 4 to 2. At this point i feel more like a DJ than a driver. So it gets me home. After i reach my destination i don't even have to turn the key, all i have to do to shut the engine is to switch off all the electrical gadgets. Let it cool for half a day and it's back to normal, driving flawlessly until next time i restart it..
I forgot to mention that if i restart it within an interval of 5 minutes it's okay, the rough running only happens if i leave it 20-30 minutes. This is my nightmare. Have searched many forums and found nobody with this weird problem. At first it only happened once a week and was intermittent but now it's like clockwork.
Is it fuel related? Vacuum related? What on earth does the heater knob has to do with the gearbox???
Thank you for your patience any advice would be appreciated. Cheers!
I will start with some facts about the automobile. It is a MB 300ce coupe produced in 1990 with a five speed automatic transmission (722.5) and 300cc 24v engine (m104.980). Many people who talk to me about the car ask me in irony if i paid money for it, maybe because of the engine size and the rust holes in the rear fender, i don't think much of their stupid inquiries i like my car it's a timeless classic and the rust just makes it look more vintage.
Now on to the bad stuff, the problem I've been having. I think i should start with my last trip. The car starts slow it takes at least five seconds of cranking to get it to idle from a cold start especially in winter. All is ok it shifts as ever, gets up to operating temperature fine so far. Have to make a stop at the market for 20 minutes or so. I get back and restart it, fires right up and the problems start: rough idle, after 5 seconds it stalls, restart it again sounds like it's on it's last breath put it in D take off and it refuses to change up just sits in second gear (the start gear).
Crawling my way to the 2 lane road where everybody is breaking the speed limit and doing over 60 i cross my fingers and hope for the best, i know in my heart it won't let me down it's a Mercedes and it will get me home no matter what.. and besides i know how to "fix" it. All i have to do is turn on the rear window defogger and the heater volume knob to full blast it will magically change gears and keep it from stalling . I can even down shift it from the heater knob if i turn it from 4 to 2. At this point i feel more like a DJ than a driver. So it gets me home. After i reach my destination i don't even have to turn the key, all i have to do to shut the engine is to switch off all the electrical gadgets. Let it cool for half a day and it's back to normal, driving flawlessly until next time i restart it..
I forgot to mention that if i restart it within an interval of 5 minutes it's okay, the rough running only happens if i leave it 20-30 minutes. This is my nightmare. Have searched many forums and found nobody with this weird problem. At first it only happened once a week and was intermittent but now it's like clockwork.
Is it fuel related? Vacuum related? What on earth does the heater knob has to do with the gearbox???
Thank you for your patience any advice would be appreciated. Cheers!