How to know if your Mercedes C class is idle?
Check for vacuum leaks with a smoke generator injecting smoke into any vacuum line and see where the smoke comes out. That’s a leak that needs to be plugged. Other than that, there is the Idle Control Unit computer and the Idle Control Adjustment Valve, all which control the idle.
Why is my Mercedes C class engine not working?
One Mercedes specialist told be that my cars engine is a gonner and the timing chain and gears were also damaged. Another one told us that our ECU was faulty and then suddenly there was no pressure on the one valve and so the so-called list of difference diagnosis started.
What causes a car to have rough idling?
Rough idling can be cause by a couple of things, vacuum leak somewhere in the intake, a dirty throttle body.
Check for vacuum leaks with a smoke generator injecting smoke into any vacuum line and see where the smoke comes out. That’s a leak that needs to be plugged. Other than that, there is the Idle Control Unit computer and the Idle Control Adjustment Valve, all which control the idle.
Why does my Mercedes Benz make a clicking noise?
It requires electrical power to crank the engine. The car makes a clicking noise but won’t start. Hint: Starter Problem or Low Battery This may seem obvious, but an old battery is the root of many headaches and can cause all sorts of malfunctions on Mercedes-Benz cars.
What are the problems with a Mercedes Benz?
Top 5 Mercedes-Benz no start problems 1 Engine Click, No Start 2 Engine Dies Right After It Starts 3 Car turns over, but it won’t start 4 The car makes a clicking noise but won’t start. Hint: Starter Problem or Low Battery 5 Key will not turn the ignition More
Is the Mercedes Benz CL550 still in production?
While rare, these cars still exist, and this new Mercedes-Benz CL550 is one of the finest examples. And this concept is still very appealing. The 2007 Mercedes Benz CL-Class clearly harkens back to the luxury coupes of past decades. But its surface blends cues from legendary Benz coupes with almost futuristic styling.
What causes a cylinder to misfire in a Mercedes?
In most cases, a cylinder misfire is caused either due to old spark plugs that need to be replaced. A failed ignition coil or a bad spark plug wires. If none of the above fixes your misfire problem carefully analyze the fault codes, it is possible that misfire may be indirectly caused by another problem in the engine.
What happens when catalytic converter is clogged in Mercedes?
If your catalytic converter is clogged you will notice a drastic drop in fuel efficiency and real struggle getting your Mercedes to accelerate. If the cat is completely clogged your car won’t even start.
What does a misfiring cylinder on a Mercedes C320 mean?
So, I suspect cylinder 2 and cylinder 3 misfired and since it was two cylinders, it threw P0300 which indicates multiple cylinder misfiring. So, I parked it in my garage and today the CEL is gone and the car is driving normally. So, can you please tell?
Are there any problems with the Mercedes C320?
Common Problems The most common problem with the Mercedes C320 concerns its 3.2-liter 215-horsepower V-6 engine. Affecting all model years apart from the 2006 version–and most severe with the 2001 and 2002 years–the problem lies specifically with its mass air flow sensor, which the engine uses to measure the amount of air it consumes.
What causes vibrations in a Mercedes Benz car?
Mercedes-Benz motor mounts are fluid filled instead of rubber mounts that are used on most cars. Mercedes-Benz the engine mounts start to loose fluid around the 100k mile mark. Once a crack develops on the motor mount, they loose all the fluid over time and the vibrations get worse.
When do Mercedes Benz motor mounts start to loose fluid?
CAUTION: Make sure no one is standing on the front or back of the car when you perform this test. Mercedes-Benz motor mounts are fluid filled instead of rubber mounts that are used on most cars. Mercedes-Benz the engine mounts start to loose fluid around the 100k mile mark.
Why does my 2003 C230 surge at idle?
My wife has a 2003 C230 Sport Coupe (hatchback) mit kompressor. The car has had a disappointingly expensive repair history, and we only just bought it in late-2006. The current problem is a misfire driving the Check Engine Light. The code is on cylinders 1, 3 and 4. The car “chugs” at idle. It does it more with the engine warm than when it’s cold.
Where is the vacuum leak on a Mercedes-Benz 251?
The 251 motor has a common vacuum leak from the hose coming from the crankcase vent lower front to middle of teh motor drivers side. Not so easy to access. When Steve speaks… the forum listens!
How can I check for a vacuum leak?
Check for vacuum leaks with a smoke generator injecting smoke into any vacuum line and see where the smoke comes out. That’s a leak that needs to be plugged. Other than that, there is the Idle Control Unit computer and the Idle Control Adjustment Valve, all which control the idle. I replaced both before I found out it was a simple vacuum leak.
My wife has a 2003 C230 Sport Coupe (hatchback) mit kompressor. The car has had a disappointingly expensive repair history, and we only just bought it in late-2006. The current problem is a misfire driving the Check Engine Light. The code is on cylinders 1, 3 and 4. The car “chugs” at idle. It does it more with the engine warm than when it’s cold.
Is there a Mercedes W203 vacuum hose replacement?
Mercedes w203 w204 vacuum hose replacement crankcase c class 2004 rough idle, engine light on – YouTube AboutPressCopyrightContact usCreatorsAdvertiseDevelopersTermsPrivacyPolicy & SafetyHow YouTube worksTest new features
The 251 motor has a common vacuum leak from the hose coming from the crankcase vent lower front to middle of teh motor drivers side. Not so easy to access. When Steve speaks… the forum listens!
What makes a Mercedes C class run Ruff?
Dirty injectors ( irregular spray pattern, fuel comes out in a stream instead of a fine atomized spray) that will sure to make the car run ruff and run rich 4.
How to troubleshoot a / C compressor clutch problems on your Mercedes?
This video is helpful if you are trying to troubleshoot air conditioner problems, the A/C compressor clutch in particular. This opens in a new window. Start by turning the engine on. Set the AC to maximum cold setting. Open the hood and look at the serpentine belt to locate the AC compressor.
When does the a / C compressor start to work?
Once you turn on the AC the center part of the compressor, the AC clutch should engage and start to rotate with the pulley. The serpentine belt rides the A/C compressor pulley every time the engine runs, but the A/C compressor is working only when the A/C clutch engages it.
Which is the clutchless variable displacement a / C compressor?
A clutch less variable displacement A/C compressor can be found on models such as W203 C-CLass and W211 E-Class. You will not be able to check the operation of the A/C compressor clutch on such compressors because there isn’t one. The following video explains how the clutchless variable displacement A/C compressors work.
Why is my a / C compressor not working properly?
If that unit detects an error it will not engage the A/C compressor to avoid it getting damaged. One other reason why the A/C compressor does not engage is the fact that the system may be low on R134 refrigerant. Typically older cars may have very slow leaks that may require top off with refrigerant every couple of years.
Common Problems The most common problem with the Mercedes C320 concerns its 3.2-liter 215-horsepower V-6 engine. Affecting all model years apart from the 2006 version–and most severe with the 2001 and 2002 years–the problem lies specifically with its mass air flow sensor, which the engine uses to measure the amount of air it consumes.
When does a car have a rough idle?
November 27, 2017. It’s easy to tell when your car has a rough idle: When you start the engine, it won’t run at a steady rate. It may almost stall, or it may run at varying RPMs without your putting your foot on the gas, or it may do both.
What should the RPM be on an idling car?
When you start your engine, and just let it run without pressing on the accelerator or putting it into gear, that’s idling. A properly idling engine should be able to maintain a steady but low rate of revolutions, somewhere in the vicinity of 1,000 RPM.
What causes the engine to vibrate at idle?
Abnormal engine vibrations at idle can be caused by a failed roller bearing or seized belt tensioner. Up front, belt-powered accessories are driven by the crankshaft pulley, which is often called the harmonic balancer or vibration damper.
Rough idling can be cause by a couple of things, vacuum leak somewhere in the intake, a dirty throttle body.
One Mercedes specialist told be that my cars engine is a gonner and the timing chain and gears were also damaged. Another one told us that our ECU was faulty and then suddenly there was no pressure on the one valve and so the so-called list of difference diagnosis started.
Is the C220 CDI eratic shaking at idle?
C220 CDI Eratic Shaking at Idle. Discussion in ‘ Engine ‘ started by Pillabenz, Nov 18, 2012 . Evening folks, Just bought another Mercedes. This time its a C220cdi Auto. 01 model. Car dives excellent, very responsive, very pleased with it.
What kind of engine does a Mercedes C180 have?
Hi everyone – I am driving a Mercedes C180 2004 model, at first it only occasionally started misfiring when low revs or stopped at a stop street. The idling sounded very erratic as well. It only got worse during the past year. One Mercedes specialist told be that my cars engine is a gonner and the timing chain and gears were also damaged.
Can a 1996 m Benz C220 cold start?
1996 M Benz C220 would not cold start and begin to stall. I am 150 miles from a MB dealer & mechanic shop. My foreign car repair mechanic cleaned out the air mass sensor unit including vacumm lines, e … read more
What is the recirculated air button on a Mercedes?
This is as far as the cylinder will go without cranking the engine. Press and hold the defrost and recirculated air buttons simultaneously. The defrost button has three lines going through it, while the recirculated air button has a picture of a car with a curved line through it.
Why is my Mercedes air conditioner not working?
Your Mercedes vehicle will flash a host of service lights to inform you when something might be damaged inside the car. If the air conditioner unit is not running normally or is only blowing out warm air, it may be a temporary fault. Sometimes the unit isn’t actually damaged, and resetting your climate control unit …
Why does my Mercedes C220 have a rough idle?
While there are a variety of reasons your Mercedes-Benz C220 has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil.
1996 M Benz C220 would not cold start and begin to stall. I am 150 miles from a MB dealer & mechanic shop. My foreign car repair mechanic cleaned out the air mass sensor unit including vacumm lines, e … read more
Why is my a / C compressor not working on my Mercedes?
One other reason why the A/C compressor does not engage is the fact that the system may be low on R134 refrigerant. Typically older cars may have very slow leaks that may require top off with refrigerant every couple of years. You can use a R134a recharge kit to recharge your system if the A/C compressor is not working.
When to disengage the a / C clutch on a Mercedes?
Purpose of the A/C Compressor Clutch. If no problems are detected such as low refrigerant in the system, it sends a signal to disengage the A/C compressor clutch. Otherwise the A/C compressor engages and starts to compresses the refrigerant. By compressing the refrigerant we add pressure to the system.
Is there a problem with the throttle sensor on a Mercedes?
Mercedes-Benz throttle body or throttle position sensor found on C-Class, E-Class, S-Class, CLK-Class, SLK-Class may fail causing idle issues, no idle or poor acceleration. Symptoms of defective Mercedes throttle body or throttle position sensor include:
Mercedes-Benz throttle body or throttle position sensor found on C-Class, E-Class, S-Class, CLK-Class, SLK-Class may fail causing idle issues, no idle or poor acceleration. Symptoms of defective Mercedes throttle body or throttle position sensor include:
Why does my Mercedes C class run lean?
You see with a vacuum leak, unmetered air is getting into the engine without passing through the air mass sensor, therefore the computer can’t account for that unmetered air and can’t calculate the correct fuel trim hence more air than fuel and the car runs lean.
How do you reset the gas pedal on a Mercedes?
Press and hold the gas pedal for at least five seconds. Keep the pedal pressed. Turn ignition off but do not remove the key. Now release the gas pedal. Remove key. Wait a minute before you restart your Mercedes. This allows resetting the High and Low points of the gas pedal.
Is the Mercedes electronic throttle relearning idle free?
Mercedes electronic throttle..relearning idle – YouTube Not sure if this is actually doing anything,but the idle seems smoother after I do this..it’s free so it can’t hurt to try it if your idle is a little wonky …
Is there a problem with the Mercedes possition sensor?
Mercedes-Benz throttle body or throttle position sensor found on C-Class, E-Class, S-Class, CLK-Class, SLK-Class may fail causing idle issues, no idle or poor acceleration. Symptoms of defective Mercedes throttle body or throttle position sensor include: A common problem that you may notice is that the car drives fine under normal acceleration.
C220 CDI Eratic Shaking at Idle. Discussion in ‘ Engine ‘ started by Pillabenz, Nov 18, 2012 . Evening folks, Just bought another Mercedes. This time its a C220cdi Auto. 01 model. Car dives excellent, very responsive, very pleased with it.
Mercedes-Benz throttle body or throttle position sensor found on C-Class, E-Class, S-Class, CLK-Class, SLK-Class may fail causing idle issues, no idle or poor acceleration. Symptoms of defective Mercedes throttle body or throttle position sensor include: A common problem that you may notice is that the car drives fine under normal acceleration.
What are the symptoms of a defective throttle possition sensor?
Symptoms of defective Mercedes throttle body or throttle position sensor include: A common problem that you may notice is that the car drives fine under normal acceleration. If you press the gas pedal to the floor or try to accelerate quickly or floor it, the engine stops responding, RPMs drop and it may even go into limp mode.
CAUTION: Make sure no one is standing on the front or back of the car when you perform this test. Mercedes-Benz motor mounts are fluid filled instead of rubber mounts that are used on most cars. Mercedes-Benz the engine mounts start to loose fluid around the 100k mile mark.
Are you feeling vibrations inside the cabin of your Mercedes Benz?
Are you feeling vibrations inside the cabin of your Mercedes? Often MB owners feel seat vibrations that can’t be explained because in most cases the car runs great. Vibrations may be felt on the steering wheel or dash and are most noticeable when stopped at a red light. Are these vibrations more noticeable when your car is in Drive or Reverse?
What’s the problem with my Mercedes C class?
21 people found this helpful. its the same problem in my 2002 c200,it caused by the nuetral pooly and the engine fountdation……. 78 people found this helpful. Is that an easy fix?, 25 people found this helpful. you have to put arround 12-15 grands for the fix and have to order parts from company. 14 people found this helpful.
Are there any problems with the Mercedes CL500?
Keep track that the ABC fluid is good is another important issue with any ABC equipped Benz. These cars are heavy. Your going to burn through front pads and tires every 20,000. But my CL is a pleasure and has been very dependable car overall. My 2000 CL500 just hit 88]
How often should you change the oil on a Mercedes CL500?
1. Frequent Mobil 1 Synthetic Oil Services. 2. Change Transmission oil at around 75K or 5 years. 3. Always Keep clean air filters. 4. Keep good, mercedes brand belts on the car. 5. Align all 4 wheels immediately after tire replacement. 6. Brake fluid flush every 2 Years. 7. Cabin filters anually. 8. Keep sunroof track lubricated.
When does vibration start in a Mercedes Benz?
Mercedes-Benz the engine mounts start to loose fluid around the 100k mile mark. Once a crack develops on the motor mount, they loose all the fluid over time and the vibrations get worse. Mercedes cars have three mounts.