Descended from the first motor car manufacturer, now a luxury German carmaker and part of the Daimler group.

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10
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1answer
3k views

how to optimize fuel consumption by changing the rear differential ratio?

Is it possible to improve the fuel consumption (decrease it) in my van by changing the rear differential ratio? I would like to optimize it for low-speed driving about 40 km/h (25 mph). Is it true ...
8
votes
1answer
29k views

I lost my Mercedes smart key, how do I get a new one?

If I lose a Mercedes smart key fob, how do I get a replacement? Is there anything I should do to prevent the old key from being used if it was stolen?
8
votes
1answer
676 views

how can I measure the amount of fuel injected into a diesel engine in real time in a purely mechanic pre-OBD vehicle?

This is a Mercedes-Benz 308D van, year 1992, model 602.316. Pre-OBD, no electronics of any sort, everything is purely mechanical. I would like to retrofit a system which would measure the precise ...
7
votes
5answers
660 views

Second hand car - Engine/Tyres/Etc

I am looking into buying a second hand car from a reputable Mercedes-Benz dealer (not just some dodgy salesman by the side of a road lol....). Anyway, there are a few maintenance/mechanical things ...
7
votes
2answers
179 views

'83 Mercedes 300D will not start when warm

The car runs great when first started, great pickup, etc. However, if I stop and shut off the engine, it will not start back up. At times I can pump the accelerator 5 or 6 times and then it will start ...
5
votes
1answer
4k views

Mercedes start/stop system doesn't always kick in

We're the (humbled) owners of a 2011 Class B Mercedes with an inbuilt ECO start/stop system. As far as I understand this is how it's supposed to work: Gear in neutral. Press the brake pedal all the ...
5
votes
6answers
5k views

what can be the reason my old diesel Mercedes won't start?

The vehicle is a Mercedes-Benz T1 model 308D. The engine is an old Mercedes-Benz OM601.940 4-cylinder indirect injection 58 kW (79 hp) 2299 dm3 diesel engine from year 1992. It's not a turbodiesel! - ...
5
votes
2answers
2k views

How to determine if a Mercedes key is original?

I have made a duplicate of my car key ( 2001 E320) and I want to know if the key (reprogrammed used key) is original; manufactured legitimately by Mercedes or an authorized manufacturer. I didn't ...
5
votes
3answers
20k views

Can I reprogram a used Mercedes smart key?

I want a new key for my Mercedes Benz and I've heard that you can get a used smart key for much cheaper than a new one from a licensed Mercedes mechanic. Can I reuse an already programmed Mercedes ...
5
votes
1answer
1k views

Does repeated turning on/off Xenon HID headlights harm them?

I've got Xenon headlights and my car has a feature which automatically turns the headlights on at night. Currently I'm hesitant to use the auto-on feature because the headlights turn on when I start ...
4
votes
5answers
371 views

What good is it for an engine to have lower CCs and higher BHP?

I was watching "The Perfect Road Trip 2" by Top Gear, where at some point Richard Hammond is driving a Mercedes A45 AMG. He says that the car develops a whooping 355 BHP, and all that comes from a ...
4
votes
2answers
1k views

Replacing the head gasket in a 1993 Mercedes 300ce

Is replacing the head gasket in a 1993 Mercedes 300ce, an expensive repair? I've been told it is better to just replace the engine all together. Is it a tough job for a backyard mechanic or a diy ...
4
votes
2answers
1k views

My car's steering wheel rotates to right when I lift my hands off

I have Mercedes E350 2009. When I hold steering wheel straight, car drives straight. When I lift my hands off, car and steering wheel tend to turn right. What could be the reason here?
4
votes
1answer
3k views

How to remove driver's side front door handle on a Mercedes Benz 2007 A-class W169?

I am stuck trying to remove the door lock barrel from the inner mounted door module on the driver's side front door of my Mercedes Benz 2007 A-class W169. I have undone the Torx T15 screw from the ...
4
votes
2answers
2k views

does a car normally continue moving at a constant speed when in gear and the foot is taken off the accelerator pedal?

I remember when driving a passenger car, when I took my foot off the accelerator pedal completely, but remained in gear, the car would normally continue to move at some low speed, different for each ...
4
votes
2answers
513 views

engine underpowered in idle - what can be done to improve a diesel engine power at low RPM just a bit?

There is an engine which is a bit underpowered when idling, it can not even keep the car moving on a flat road when in gear and idling at 700..800 RPM - see link. What can be done to improve its ...
4
votes
2answers
404 views

What is the best way to remove a stripped head bolt that is deep in the engine?

One of the head bolts on my 1997 Mercedes C230 stripped during removal. It is a 12 point star, I think they made be called triple square splines. The others are about 4 inches long stretch bolts. ...
4
votes
1answer
210 views

2008 MB C300 Will not start

My MB C300 will not start. I put the key in and turn it but nothing happens. The radio and internal lights do come on but not the car. The steering wheel is locked and can't put it on Neutral either ...
4
votes
1answer
150 views

Oil pressure decresases when I step on the gas

I have a 1982 Mercedes W123 with a 2L gas engine. I have noticed some weirdness with the oil pressure and want to know if this is an indication of a problem. Let's say I am driving at 60km/h and the ...
4
votes
1answer
1k views

How can I remove heating blower fan from the blower motor - Mercedes-Benz 308D van?

How I can remove the plastic fan from the axle of the heating blower motor? The vehicle is a Mercedes-Benz 308D van from 1992. The blower motor is a Bosch part number 0 130 007 027. I know that also ...
3
votes
1answer
384 views

Strong vibrating over 60mph. 98 ML320

1998 Merc-Benz ML320 Some Back Story Had problems sense I got his thing. It had a slight radiator leak to start with that I was made aware of at purchase. Until now, that's all it was. Since ...
3
votes
1answer
192 views

Strange “plastic” knocks near the heater

Recently I started hearing a strange "plastic-like" knocks right after starting the engine. EDIT. Here's the video: http://www.youtube.com/watch?v=i4mLn_-nUYA I also tried it with the engine off ...
3
votes
1answer
153 views

Two Mercedes Electronic Keys - One Works As a Remote - One Works to Start The Car - How Can These Be Combined?

I just bought a 2005 Mercedes C230 and I have two Mercedes electronic keys - one works as a remote - one works to start the car - how can these be combined/programmed so they are both fully ...
2
votes
3answers
402 views

Mercedes C320 2003 tires & rims

I have a 2003 C320 Mercedes & am needing to replace the front 2 tires & rims. I have 255/35/ZR19 on the back so would a 245/45/R17 work for the front?
2
votes
2answers
139 views

What is the best way to determine if my hydraulic motor mounts are bad?

I am experiencing delayed forward movement at take off. I apply the accelerator nothing happens until it jolts forward. When I stop it lunges forward, which leads me to believe it is the motor mounts. ...
2
votes
2answers
873 views

unusual noise when switching into the second gear - other gears are fine

Almost every time I switch into the second gear, a quite loud crackle sound is heard shortly. It only happens when switching into the second gear, other gears are fine. I depress the clutch fully of ...
2
votes
1answer
48 views

How to remove the flooring system from Mercedes 614d minibus

I'm looking to convert a Mercedes 614d minibus into a catering truck. Can the floor system,rails which keep the seats in place, be removed as would like to make the floor lower. Many thanks.
2
votes
1answer
310 views

Volume of fuel reserve in MB E200 W211 2004

I wonder how much fuel is still left in the reserve tank when the yellow fuel reserve indicator lights up in Mercedes-Benz W211 E200 Kompressor (2004).
2
votes
1answer
329 views

Is this repair estimate for misfiring and fuel trim on a '98 Mercedes reasonable?

Just got a '98 Benz ml320 and two days later it cut off on me, twice, within about 5 minutes. I took it for a diagnostic. I'm wondering how overpriced this estimate is and possible ideas of best ...
2
votes
1answer
195 views

Mercedes OM636: Can I Resolder Wire to Coolant Temperature Sensor?

The wire contact connected to the Coolant Temperature Sensor of my Mercedes OM636 (Boat engine same as Mercedes 170D, 180D) was corroded and got accidentally snapped off. Can I just solder this back ...
2
votes
2answers
331 views

Timing chain of a mercedes benz

Does the valves bend when the timing chain slips on sprokets, on a mercedes benz 2008 model C200 komp?
2
votes
1answer
629 views

Radiator Coolant Leak

I have found heavy leak of engine oil into the radiator of my 1996 Mercedes Benz (odometer 150000 mile). The workshop found the oil cooler pump damaged but we could not find a new one in the area. He ...
2
votes
1answer
855 views

Engine has become noisy

I have a 1993 Mercedes 308d. It always used to be fairly quiet, but recently the engine has started to sound quite noisy. Its OK when started then after it gets warm you notice when you come to a ...
2
votes
2answers
167 views

Mercedes 2.7CDI C Class 2004 Hard Starts

My 2004 2.7CDI gives me a hard start when I am starting it the first time in the morning after parking it over night it but works and starts perfectly thereafter till the next morning. The fault does ...
2
votes
2answers
42 views

What xenon discharge tube goes to Mercedes B 180CDi (2009)

I have a Mercedes Benz class B 180CDi from year 2009. I ordered a D2S High Intensity Discharge tube with a note that it should be compatible with my car. The seller answered that I should order D1S ...
2
votes
1answer
1k views

Mercedes SLK (R170) convertible top/trunk release

I have a 1999 Mercedes SLK 230 (R170), with an interesting combination of problems: A) The hydraulics for the convertible top are low (to the point where the top won't even start to open anymore), ...
2
votes
1answer
1k views

Engine does not have enough power (and has limited RPM)

I have a 1982 Mercedes W123 (engine M102 - gasoline, 2.0L, 80kW, with Stromberg 175CDT carburetor). The car has been modified to run on LPG, the modification consists of adding a LPG tank, vaporizer ...
2
votes
2answers
3k views

How can I put down stuck rear sunshade on a 2006 Mercedes E class?

I've got a 2006 Mercedes e-350 with an automatic rear sunshade; until a week ago the sunshade worked fine, but now it's stuck up and I can't get it to come down by any means. The button to move the ...
2
votes
1answer
536 views

Where can I get/buy a repair manual for a Mercedes-Benz CLK200 Kompressor -2002?

I have checked haynes.com but it seems like they only cover C230 - C350. Any other good sources to check? I have tried to contact Mercedes-Benz Europe directly via e-mail for a regular manual, but ...
2
votes
1answer
656 views

how to install cruise control (Tempomat) in an Mercedes-Benz 308D from 1992?

I would like to retrofit a Mercedes-Benz 308D van from year 1992 (model number 602.316) with cruise control. What parts would I need to buy and how to proceed installing them? I mostly see parts for ...
2
votes
0answers
337 views

Mercedes C250- Eco mode not working

i have a C250, W204, 2011 model, and i noticed that the ECO mode is not working anymore. When i turn the car on, the ECO button light is green and the ECO sign appears in the cluster. After 1-2 min, ...
2
votes
2answers
114 views

Differential Gear Alternative Ratio

I have Mercedes-Benz E-200 Estate Model 1995 with a Differential Ratio Number 3.92; Which I couldn't found; So I'm looking for a Differential Gear EQUIVALENT to 3.92 Ratio? For example can I use 3.90 ...
2
votes
0answers
348 views

What is a good online service for getting Mercedes Benz car history reports? [closed]

I'm searching for a good and trusted service that provides car history reports (mainly for MB cars 1990+ models). I heard about these companies recently and I would like to know more about them. I'm ...
2
votes
0answers
849 views

Mercedes Atego OBD2 live data codes

I have tried to connect an OBD2 ELM327 adapter in Mercedes Atego. Somehow I managed to get it in that OBD2 connector. I can see that my adapter is receiving electricity. These are the PID's that I ...
1
vote
1answer
109 views

Parking brake alarm will not stop

My husband's 1999 ML430 is on its last legs, and we're trying to sink as little money into it as possible and just get him a better car soon. However, this week, the parking brake alarm won't stop ...
1
vote
1answer
584 views

Oil Says Empty, Dipstick clean, but just changed it all?! 1998 Merc Benz ML320

Had an issue come up yesterday where my Truck (1998 Mercedes Benz ML320) just suddenly said no oil and then started pinging a little then cut off. I threw a quart in ( i always keep one in the truck) ...
1
vote
1answer
118 views

Looking at car mileage [closed]

My wife and I have just moved to USA, and we need a car immediately. This is my first time in US so I didn't know. We have a budget around 7-8k for our first car. I was looking at some Mercedes ...
1
vote
2answers
332 views

No power to interior lights, etc

I got Mercedes A Class W168. Recently I got a weird problem, when I switch the key, only battery & SRS lamps lit at dashboard. Engine, headlamps, radio, horn, windows, power steering work. ...
1
vote
1answer
239 views

Spare smart key for mercedes

I need a second (spare) smart key for my 2005 Mercedes A Class. Short of going through a Mercedes dealer is there a relatively cheap way of acquiring one?
1
vote
1answer
294 views

Steering angle sensor

On my Mercedes C180, just got an error about non-functioning steering angle sensor. I understand it can affect ESP, but how bad in fact is it? Replacement is rather expensive, so I wonder if I can ...