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I have a W203 C220 CDI 150000 mi. recently Dash temp

I have a W203 C220 CDI 150000 mi. recently Dash temp suddenly went to 120+ limp home. Garage with Mercedes star system says no fault codes engine did not overheat. Used car again as soon as engine underload on motorway same again still no codes. used again exactly same again no evidence of any problem again but suspected temp sensor so changed and changed the Air mass sensor. Used the car again and exactly same again. Any ideas???Assistant: Have you checked the connectors on the sensor itself? It's important that they not be loose or corroded.Customer: I am assuming the garage has done that, they do have a high rep around hereAssistant: What year is your C220?Customer: 53 plate whats that 2003?Assistant: Are you fixing your C220 yourself? What have you tried so far?Customer: No it is with the garage using a merecdes star computerAssistant: Anything else you want the mechanic to know before I connect you?Customer: can't think of any

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Matt

Engineer

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30,846 satisfied customers
I have just discovered oil in the header tank of my Mercedes

Hi I have just discovered oil in the header tank of my Mercedes 250e class automatic convertible, it is a 10 plate,85000 mis, I have had 3 different reasons for this from 3 different garages,could you pls ahead any light on what you think it could be ,thank you steven

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Matt

Engineer

Bachelor's Degree

30,846 satisfied customers
Earlier today I noticed smoke coming from the exhaust whilst

earlier today I noticed white smoke coming from the exhaust whilst driving but also after i'd stopped the car and turned the engine off. It started fine after that and no further white smoke when drove later on. All within the space of about 30 mins. Just checking if it's a one off or whether it could be serious. It's an e220 cdi 2015Assistant: How many miles are on the car? How has your mileage been lately?Customer: 35,000. not done a long journey for a week or soAssistant: What year is your MINI?Customer: It is a mercedes 2105Assistant: Are you fixing your MINI yourself? What have you tried so far?Customer: It's a mercedes 2015 not i've not tried to fix it as i'm no expert.Assistant: Anything else you want the mechanic to know before I connect you?Customer: no

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Matt

Engineer

Bachelor's Degree

30,846 satisfied customers
Thank you the Water level is dropping enough for the warning

Hi pearl thank you the Water level is dropping enough for the warning light to come on and the local mechanics have run it all day and there is no sign of a leak what could be the problem?Assistant: What part of the car is the leak coming from? And are you sure it's water?Customer: We don't know when I drive it the coolant level drops steadily but it is getting worse no visible sighting of where the leak isAssistant: What is the model/year of your Mercedes?Customer: Cd110 2012Assistant: Are you fixing your vehicle yourself? What have you tried so far?Customer: No a local garage is trying to find the problem they have run the van all day today and the coolant level has not dropped so it is only happening when the vehicle is being drivenAssistant: Anything else you want the mechanic to know before I connect you?Customer: The problem is getting worse every day yesterday I filled the water up to max and after 3 hours driving the water level had dropped out of sight the reservoir was emptyi

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Matt

Engineer

Bachelor's Degree

30,846 satisfied customers
The coolant warning sign has come up on my Mercedes 350. I

the coolant warning sign has come up on my Mercedes 350. I am intending to drive 250 miles over the next two days. Am I okay to drive

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Marty

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Associate Degree

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My w212 E250 estate 2011 has a water problem the top hose

My w212 E250 estate 2011 has a water problem the top hose was callapsing when cooled down new top hose fitted still happened was told sounds like the cap was not allowing the pressure out replaced the cap still happened all this time every so often l had to keep topping the coolant up had the fuel filter houseing renewed still happening found coolant leaking from the top sensor so replaced the thermastat still happening the first thing l had checked was a gas test to check for head gasket or cracked head / block nothing wrong can anybody help please thanks J Bailey.

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Matt

Engineer

Bachelor's Degree

30,846 satisfied customers
I'm in the process of replacing the water pump on my C36

I'm in the process of replacing the water pump on my C36 AMG. Being a straight 6 I'm concerned that when I refill it with fresh coolant I may trap air in the cylinder block/ head. Is there a bleed screw somewhere? Is there a trick?Any advice appreciated! Thanks, Martin

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Matt

Engineer

Bachelor's Degree

30,846 satisfied customers
I have a 2001 Mercedes C220 CDI. Kept going into limp mode

I have a 2001 Mercedes C220 CDI. Kept going into limp mode and discovered the primary catalytic converter was clogged up, removed and cleaned and also replaced the air filter. Have cleaned ERG valve and MAF sensor. reset all error codes.Then started getting a check coolant level and the radiator fan is running flat out and car now permanently in limp mode.Checked coolant level and it is fine, no leaks anywhere and car is not overheating, on the advice of someone else on here I disconnected the battery and went through an ECU master reset procedure. Still getting coolant level warning and now getting ESP warning as well. i have not driven the car as yet. Any ideas as to what is going on? Only had this car for 3 weeks and I just want to sort it so that i can get rid of it ASAP. I hate the thing with a vengeance and will never buy either a diesel car or a Mercedes ever again.

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Matt

Engineer

Bachelor's Degree

30,846 satisfied customers
The fan in the engine spontaneosly comes on making a loud

the fan in the engine spontaneosly comes on making a loud noise while driving along the cuts out for a while and starts again.when the engine is switched off the fan continues for a full minute and sometime longer before stopping. it sometimes the starts again before finally stopping.the noise is really loud.

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Matt

Engineer

Bachelor's Degree

30,846 satisfied customers
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