Mercedes Benz 2000 C230 Compressor has fuel problem. Replaced fuel pump pressure checks were normal. Scan read fuel trim malfunction cylinder misfire detected...Where do I go from here?
View 2 Replies2001 MB E320. While traveling at the posted speed, 75mph the accelerator quits working. The speed control will still work and the accelerator will work after some play and time. When I stop the car and turn off the ignition and then start the car again the accelerator works fine. This has happened only twice but I'm afraid it will continue and happen more often. I traced the accelerator cable to a small box on the left side pf the engine.
View 1 RepliesThis 92 MB E300 has been sitting around for the better part of the last two years for various reasons (have another car with better mileage, don't drive much anyways, no insurance on it, etc), and we've been trying to get it going again with some mixed luck. I just replaced one of the window regulators (cable busted) and the battery (alarm drained it dry), but now we're having trouble starting it. It doesn't happen every time, but when we try to start it, the starter motor seems to get going no problem and it turns pretty good, but it just won't catch consistently. Its almost like there's no fuel in there, or maybe no sparks or something? Sometimes it will catch for a second, but it takes a while. Usually, once it's going its good, but if we have to stop and wait at a red light, it will sometimes just die when shifting to drive (I usually put it in neutral and give some gas while waiting). Also sometimes just when it's in a low gear and shifts up it will die too. Then, we have trouble starting it up again!
So what's going on, do you think? I was thinking maybe something along the lines of the fuel pump, spark plug, or injectors, but what do I know? (not much).
I have a 2003 Mercedes c230 with low mileage 70000. This was its first season not garaged. About 2wks ago when very cold started abruptly to misfire badly at idle with poor gas mileage and modest loss of power. I got codes on OBD II for multiple cylinder misfires p0301-4 (all 4 cylinders). No other codes. Also the MAF and O2 sensors seems to be giving normal readings, and I cleaned the MAF sensor (didn't take off. cleaned through screen connected to air filter housing). 1 or 2 of the spark plugs seemed fouled as had black oily fuel on them and the O2 sensor voltage readings were consistently close to 0.9v (high meaning reading rich air/fuel right?). Changed all 4 plugs and swapped around ignition coils. Seems a little better but still misfire. O2 sensor voltage reads now consistently around 0.7v and the new plugs are dry but already blackened (indicating rich air/fuel I think).
View 11 RepliesMy 2000 Mercedes C230 Kompressor's been riding rough, particularly at low speeds and when idling. I took it in to see if engine mounts needed replacement, and yes they do, but my mechanic also found that I've blown or cracked the head gasket. Coolant has solidified around the gasket, keeping it from leaking now, but he indicated that with the next rain, that solidified coolant would be washed away and the car wouldn't be able to hold coolant. The car has 160,000 miles, recent brakes and tune up (should he have seen the gasket problem at tune up???).
View 9 RepliesA few months ago I bought a used 2007 Mercedes C280. Overall, I've been very happy with the car. The first month or so was heavy on longer highway driving, and it seemed to be getting decent gas mileage. The last couple of months have been mostly short range city driving, and the mileage seems significantly less. I wonder about the idle speed, on the assumption that it may be wasting a lot of gas sitting at stop lights and in traffic. The tachometer reading isn't always consistent at idle, but fairly often it's up close to 9,000 rpm. What should I be seeing, and does this need attention?
View 6 RepliesI have a 2001 Mercedes E class, 4Matic. Over the last 7 years the ABS (Anti-lock Braking System)/EPS (Electronic Stability Program)/BAS (Braking Assist Program) warning light comes on and when I stop the car and start again, the light goes away. When this light comes on, only thing I noticed is the cruise control does not work, otherwise, no other problem. I took it to the service station one time, but that light did not come on and they did not do anything.The car has 105,000 miles. Now, when the light comes on it stays on longer and sometimes, I have turn the car on and off several times before light will go away.I am afraid to take it to the Mercedes dealer, as they might find a problem when no problem is there. Whether this is just glitch in the software or there is a real problem.
View 1 RepliesI have a 1989 Mercedes 300F, automatic transmission, with 175,000 miles (give or take). It runs great, starts well, we have no problem driving it 30 miles back and forth on back roads up to 60 mph. The problem seems to be when driving 40 miles at 75 mph. At that point, it will start to run rough, and then will not go over 40 mph without whining. The first time this happened, I had a leak in the transmission fixed and fluid put in. The second time, I had the fluid and filter changed, a new alternator, and a complete tune up. For a month after that we drove it for miles but not on the highway, with no problem. I thought I would chance it on a longer trip, got 40 miles down the highway at 75 mph when suddenly it started acting up and had to call a tow truck. When the tow truck arrived, we did not see any fluid under the car. It's been sitting in the driveway and now there are fluid leaks (appears to be oil). So, does it sound like something in the transmission, or maybe a bad alternator?
View 9 RepliesWhile on way to parts store car started acting like it was running out of gas. A half block from gas station it quit . I walked to station got gas put in the tank the engine would crank but would not start. I got towed home and still will not start. It will crank but that's it. 3.0 L inline 6 300 E ...
View 5 RepliesThe check engine light is on. Yesterday twice I had the situation where when I turned the key to start. The starter motor was crankin and it was not firing. I pumped the throttle a few times to let air/gas into engine. I also opened the gasoline tank cover (where you insert the nozzle to pump gas) for a few mins and then shut it and started the car. It started. After running for 20 mins it happened again. The starter motor has to crank for some 10 seconds before it fires. Then no issues. What do you think it is??? Battery is fine, starter motor is fine since its cranking away. I am suspecting fuel pump ?
View 19 RepliesI have a 91 Mercedes with 153,000 miles thats terrific but the mystery leak in the hydraulic running the rear suspension is driving me nuts. Especially when the hydraulics call for factory spec fluid.
View 3 RepliesI have a '05 Mercedes CLK320 convertible that I purchased 3 years ago with about 29,000 miles on it. Two years ago the hydraulic lines in the top blew and I spent about $3,000 to have it repaired. Today, the lines blew again. What I'm trying to find out is: - Is this common in this car? Or in any convertible?- Did I just get a lemon?- If this isn't a common problem, should the dealer that repaired the hydraulics 2 years ago fix them again for free?
It only has 70,000 miles on it now and I was under the impression that I could drive a Mercedes for a couple hundred thousand miles without a too much mechanical problem. But if this is going to be an ongoing issue, I'm going to get rid of the car, even though I absolutely love it. It's ruby red, of course!
My brakes squeak from time to time, particularly backing up, but also braking forward. My mechanic said I have plenty of brake pad and nothing is being damaged. He said he has often seen the "squeaky brakes" problem in Mercedes and it is often difficult to pinpoint which wheel (or wheels) would be the cause of the squeaking (sound like metal on metal). Why this is happening?
View 2 RepliesMy 1994 mercedes C220 stalls at idle. the local mercedes dealer told me that it is caused by the alternator overcharging. can this be true??
View 2 RepliesCar starts intermittently, have heard this is common on Mercedes Benz cars, whats the fix? I do my own maintenance on my cars have tools ect.
View 9 RepliesI own a used 2004 Mercedes C320 4Matic. I bought it with 57k miles. I drive it about 150 miles per week. The reseller told me i needed engine mount replacements at 67k. The car did have a vibration, which I was sort of ignoring, so I had the work done. Now, the vibration persists.
It is most noticable in the morning upon start-up, at an idle. But it is also noticable when the car is warm and I am stopped at a light. It can also be noticed as a subtle vibration in the steering wheel at highway speed.
I am very sure it is not wheel balance or rotors (hey, I can feel it at a stop). I brought it back to the dealer, who said after 5 hours of diagnosis, they could findind nothing wrong.
Last week I noticed that my engine (2006 ML350 33,000 miles )was not sounding as it normally does. I called my foreign car repair shop that normally maintains my car but could not get an appointment for several days.
My husband thought that it was possibly a bad bearing in one of the belt pulleys near power steering pump. The noise was getting louder so my shop looked at it sooner and determined I needed a power steering pump, reservoir, gasket, fluid,accessory belt tensioner and belt.
I had no choice but to get the repair.When I picked up my car it still didn't sound right. I was told it would take a little time to break in. Well all week my car was making a lot of different sounds until it got so loud I wouldn't drive it. I took it in today and got the call that it needed what I think was called a/c tensioner pulley. I just want to know if this seems possible. (Car drove fine and no problems with steering before first repair).
I have a 1996 Mercedes C280. The outside ambient air sensor has gone bad and now reads about 30 degrees F high. There are two types of sensors for this model and year. One is a plug-in sensor that looks like a small pointy cone. The other is a long cable with a metal cylinder at the end that looks like an old-style stereo headphones jack (the thick kind). I have this second type.
I would like to know whether, instead of replacing the whole wire and sensor combination, which involves taking out the instrument cluster and rerunning the wire, I can simply cut off the wire at the sensor end and solder in a new sensor (cut off from a new part).
I am wondering whether it would be possible to just cut the existing cable near the sensor end and then solder in one of the pointy cones. There is a youtube video that shows replacement of a similar type of pointy cone sensor on a BMW, and it looks like the assembly that accepts the sensor is the same, so if I couldn't find a Mercedes plug-in receiver assembly for my old car, I could maybe use the BMW one and then plug in the Mercedes sensor. That would let me do another plug-in later without resoldering.
Since this sensor has gone bad once before, I have to think that a replacement won't last more than five years or so.
I am not sure whether the outside temperature has an effect on other aspects of the car, such as injection mix. I presume it has to go through the on-board computer, because it must be the signal for the little snowflake that appears on the dash when the outside temperature drops to freezing at the road level. Whether leaving the sensor alone and just living with a high reading will cause problems? Right now when the outside temp is around 70 degrees F the sensor reads about 105 degrees F.
Last summer my air conditioner (cooling) stopped working. However the heat has remained on and is very high, even though it is not turned on. How can I turn the heat off?
View 5 RepliesI have about 25K miles on tires that are expected to last for 60K miles. The tred is fine. But I have experienced occasional serious shaking of the car when going at high speeds. Not every time. And it has only happened when I am alone in the car (of course did not happen with mechanic in the car). My mechanic says I need an alignment and new tires, claiming that by being out of alignment the tires are ruined. Says it is heat and road conditions that cause the effect and there is steel belt damage within at least one of the tires. Curiously, the car does not do the classic out-of-alignment thing of pulling to one side. Not at all. Is it an alignment and tire issue or something else? The car has 175,000 miles on it and otherwise run great!
View 6 RepliesMy 2001 Mercedes CLK320 has ~150k on it. The maintenance etc. has been kept up to date. A few months ago the car engine started to run noisily and began to vibrate. It's worse when it's cold out or if the car is at stopped but not in park (like when you're at a stop light or drive thru). The vibration and noisy engine running lessen considerable after the car runs for a while and if the car is in the park. I already had a tune up by the MB dealer about 9 months ago. Diagnosis? Also, I'm obviously at that point where the dealer service shop no longer makes sense. I'm going to drive this car (hopefully) beyond 200k, however, it would be nice to get rid of this problem. Otherwise, the car really is almost as good as new!
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