Mercedes-Benz engine repair questions and answers
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1572 Questions
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I recently took my car 2002 mercedes ml 320 to the mechanic, he told me i needed a new fuel filter, MAS flow sensor andelizabeth_r1027 - 2002 Mercedes Benz ML320 - Engine - 12/17/2012-
12/17/2012 JasonSometimes the MAF can be cleaned. $600 to $750 to replace the filter and MAF sensor depending on location.
12/17/2012 elizabeth_r1027i replaced the MAS sensor after having the problem and it didnt help anything.. could it be due to the mechanic not installing the fuel filter right??
12/17/2012 JasonDid a shop diagnose the problem?
12/17/2012 elizabeth_r1027yes he is saying its the spark plugs now which i replaced along with the MAF although the problem i have with the car was before i changed them.. and on the diagnostics he said its saying i have a cylinder 5 misfire, maf misfire and fuel filter misfire still as well.. he believes i put the wrong spark plugs but i'm thinking its still somehting with the fuel filter since the car got worse after he replaced it..
12/19/2012 JasonFrom your discription, it sounds like the mechanic misdiagnosed the problem. He should fix it at no more cost to you, and possibly refund some of the repairs.
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When the heat is on, I lose heat when the car reaches 55 mph.Burt - 1986 Mercedes Benz 300SDL - Engine - 12/17/201286 MB 300 SDL with 213,000 miles. This happen when every my speed is above 50 to 60 mph. there are no warning lights on, this has been happening since Nov, 2011.
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12/17/2012 DesiWhen you turn on the heater the Engine coolant?antifreeze is circulated into the coils which causes engine heat absorbed by the Coolant to transfer to the coils and then into the cabin. Generally low coolant level can reduce the heating in the car >try topping up the antifreeze/Coolant first. if it does not solve the problem then i can with other checks
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Why is my car making a knocking noise on the side of the engine on the passager side ?Joanamatias47 - 2006 Mercedes Benz CLS500 - Engine - 12/16/2012Do I need a oil change because maybe from The car sitting its dirty and makes the noise ??
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12/16/2012 JimmThere are several possibilities; low engine oil level, low engine oil pressure, poor / clogged engine oil passages on the engine passenger side.
12/16/2012 Joanamatias47Do u think I should attempt to change the oil and get new clean oil in there it will make it go away ?
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What's the cause of my CLS500 having a ticking noise sound on the side of my engine on the passager side ??Joanamatias47 - 2006 Mercedes Benz CLS500 - Engine - 12/16/2012My car is barely driven the past year only put 3000 miles on it ..the car sits in the driveway and is driven on Sunday's Only !! I just started the car up and now I hear the noise even when the car is warm it still makes the ticking / clicking noise !! I have not ...
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12/16/2012 JimmUsually, engine noises rarely just 'go away' - there are several possibilities; low engine oil level, low engine oil pressure, poor / clogged engine oil passages on the engine passenger side.
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What's the cause of my CLS500 having a ticking noise sound on the side of my engine on the passager side ??Joanamatias47 - 2006 Mercedes Benz CLS500 - Engine - 12/16/2012My car is barely driven the past year only put 3000 miles on it ..the car sits in the driveway and is driven on Sunday's Only !! I just started the car up and now I hear the noise even when the car is warm it still makes the ticking / clicking noise !! I have not ...
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12/16/2012 JimmUsually, engine noises rarely just 'go away' - there are several possibilities; low engine oil level, low engine oil pressure, poor / clogged engine oil passages on the engine passenger side.
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The acceleration of my car is very poorpetrosandriana - 1990 Mercedes Benz 350SDL - Engine - 12/16/2012I have already replace fuel filters but not to much of a diference
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12/16/2012 JimmFirst step - have the check engine light or stored fault codes scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' for more assistance.
Possible Causes of Engine Hesitation or Stumble:
Dirty fuel injectors (cleaning the injectors often fixes this)
Dirty air filter (change filter)
Dirty / clogged fuel filter (change filter)
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)
Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:
Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
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My vehicle had been riding smooth as butter until it ran hot i took to a mechanic who suggested i need a radiatorvwhtax - 1995 Mercedes Benz S320 - Engine - 12/13/2012
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12/13/2012 JimmTry the many on-line auto parts sources; such as - www.autopartswarehouse.com or www.rockauto.com for the replacement parts. For example,they (RockAuto) list the radiator from around $225.00 for your vehicle.
Don't overlook replacing the radiator hoses and hose clamps at the same time.
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Why does my car (it's an 230E, but I could'nt find it in the sellection) start and stop again after 5 seconds?oda.warankov - 1990 Mercedes Benz 300E - Engine - 12/13/2012It stops no matter if i'm touching the gas-pedal or not. The fuel pressure is fine. Anyone who knows whats wrong? -
What causes the car refuse moving when it comes to a complete stopbaba abdul - 2002 Mercedes Benz E320 - Engine - 12/12/2012The car refuses to move when it comes to a complete halt, unless I restart it -
Very hard to start in the morning. A least turn the 5 times I going to burn the starter out fuel pumps ?david - 1989 Mercedes Benz 420SEL - Engine - 12/12/2012Hard start after park for 3 hr. -
My vehicle shimmys only at idle and intermittedly. brake pedal seems to not compress entirely.marcihopetaylor - 1999 Mercedes Benz CLK320 - Engine - 12/11/2012114,000 k just started cel is on -
My vehicle shimmys only at idle and intermittedly. brake pedal seems to not compress entirely.marcihopetaylor - 1999 Mercedes Benz CLK320 - Engine - 12/11/2012114,000 k just started cel is on
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Why does my engine race when i start drivingJUSTLU818 - 2007 Mercedes Benz C280 - Engine - 12/11/2012can you tell me why my transmission or engine skips and jumps and races when first used?..when i start the car , i seem to have to warm it up first ..but when i drive it .. it jumps and races until i drive it for while..is this normal for my car?
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Lack of power when going up hillfishan4 - 1989 Mercedes Benz 300E - Engine - 12/9/2012Have put 525,000 miles on this car. Only shows some oil leakage around the valve cover. New spark plugs. Water level ok. Little hard to start. Next starting point?
