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7

There are other factors that affect the start stop feature. I am not sure on that exact model but generally the following things will keep the car engine from shutting off: Coolant Temp too high, or too low The engine has not ran for at least two minutes The AC is on and not in the economy mode Low Vacuum Battery charge low High current draw on the 12 volt ...


6

The short answer is that yes, you can change your differential to optimize fuel efficiency. CAVEAT: it is almost certainly not worth it. Here's a very high level discussion of why there are better ways to achieve the same goal (better fuel efficiency): Think about how the air-fuel mixture in the engine is managed: for each revolution of the engine, a unit ...


5

The Mercedes M103 engine in your 300CE is a proven design, old enough to demonstrate its longevity—lots of them are running around still with 300,000+ miles on them. The head gaskets are pretty much the only serious weak point. If the engine was not burning excessive oil (more than a quart every 5,000 miles) or showing other signs of extreme wear before ...


4

I think this could be related to one if the gearbox synchronizers (take a look into this wikipedia article) to see what I mean, and the one that's failing is the one for first-second shifts, as you describe the issue. I hope that helps


4

You're going to need a new key, as used, already programmed keys will not work. You'll have to get your dealer to order the key as they're not keys your dealer or mechanic can make. You'll need to know your Vehicle Identification Number (VIN) and bring two forms of ID (in my experience) to get a new key; they're very picky about giving out new blank keys, so ...


4

I think the listed stats make it pretty clear: you are driving a heavy van with a fairly low power engine. More importantly, it's likely that you have a low torque engine which is critical to keep the vehicle rolling. What you're used to in the passenger car is the same as what happens in the van, just to a lesser degree. In your passenger car, you were ...


4

We had the same problem on a late 2005 W169. Note you do not need to remove the door card if you just want to remove the door lock cylinder and exterior handle. Once you've loosened the bolt holding the cylinder accessed from the side of the door (On ours it was a T20 - T15 would work but there's a chance of rounding off the head) there is a catch above the ...


3

Four months went by between when you last ran the vehicle (December) and when you tried to start it (April). Just like gasoline, diesel fuel can also "gel" and clog up your fuel filters. As a first, low-cost troubleshooting step, change both of your fuel filters. You can use some starting fluid to try and start the vehicle after changing the filters. If ...


2

air filter is a good place to start. Some owners of older diesel MBZs have used Seafoam or diesel purge to some effect. Take a look at this video: http://www.youtube.com/watch?v=zCVdSiECajQ be careful, as its easy to hydrolock your motor doing this.


2

Finally found out how to reset the service reminder manually. It was easier than expected. Here it comes in steps: Put in key Turn key to position 2 (this might be tricky, there are 3 positions, but its actually just before the engine starts, all electronics are on, lights flashing on "dashboard") Use buttons on steering wheel to navigate to "Service ...


2

Try coming in at an angle. Come in slowly so that you get one wheel up at a time, or come to a stop and roll slowly and turn the wheel while you're moving. This should help the tire grip the side and aid in getting the car up, instead of the motor pushing it entirely, if that makes sense. However, if you're going to be jumping kerbs regularly you should ...


2

Any key that has already been programmed to a Mercdes will never work in any other car. Once a key has been "flashed" or programmed to one car you can't reprogram the key. Mercedes keys pair "for life", so once you stick a key in the ignition and it works, it's never going to work in another car. It is true that a Mercedes can accept new keys; when you get ...


2

Since the Marecedes "Smart Keys" are proprietary, only Mercedes's manufactoring partners make them; since they're programmed with electronic codes only Mercedes makes them and they're very protective over who they'll give a key to, since a blank key will program itself to any compatible Mercedes and become the key for that car. This is why I really ...


2

If the injectors are fired electrically(which they most likely are), you could wire in a voltage-switch to the injectors, so that it is closed when the injector is fired. This would allow you to measure the time spent open, and do a little math based on the flow-rate of the injector to get a calculated measurement of the fuel injected into the system. If ...


2

In my experience tirerack.com does a fantastic job of determining appropriate fitments for all kinds of cars. They do list some 17" wheel fits for the 2003 C320, but they suggest a 225/45-17, not 245/45-17. Your current rear wheel/tire setup is a bit bigger in diameter than their recommended packages. Their recommended 19" fitment is either 225/35-19 all ...


2

One thing to consider when replacing a head gasket is that your engine's head may have warped ever so slightly when the car overheated (caused by the blown head gasket). If that's the case, it would have to be machined by a workshop. As for actually replacing the gasket yourself, it's a matter of removing the top part of the engine, scraping away the ...


2

I'm not sure you should trust to intuition here :-) I wouldn't expect the leak to be due to the oil in the system. Instead I would see both as symptoms of the more general problem of things wearing out. I'm concerned they didn't source a new oil pump - without it, parts of the engine or coolant system may overheat and this could lead to leaks such as the ...


2

Sounds like a lack of fuel getting to the engine. Get it hot, turn it off pull a fuel line and crank the engine, see if any diesel comes out. It could be a fuel line softening up when it gets warm and pinching shut due to the suction from the pump. If thats the case, replace your fuel lines with proper diesel rated lines.


2

I would think you should be able to if there is a terminal for the wire to attach to. If the terminal has broke off at the base of the sensor, then it probably won't work. I would use a soldering iron, versus open flame type of iron to ensure the heat is more localized. If you are worried about the sensor not working due to the heat, I don't think I would ...


1

Where is the hydraulic pump? Can you get at that to top up the fluid? Another option might be to try and remove the rear trim panel (i.e. the bits behind the seats), and see if there is a way through the rear bulkhead into the trunk. Many cars have a non-solid bulkhead in order to save weight. You ought to be able to remove the trim without damaging ...


1

With the vehicle off and key out of the ignition locate the fuse box and remove fuse #30 (DAS transponder/RFL/Instrument cluster). Give it about 5-10 second before reinstalling it and then put the key in the ignition and see if everything works. It's possible that the DAS module had gotten a little confused at some point and had placed itself into a ...


1

This almost sounds like you have an obstruction somewhere in the intake path as it sounds to me that the carb either doesn't open all the way or it can't get enough air in even if the carb is fully opened. CD175s have a (rubber) diaphragm - these get old, crack and tear after a while. That would be the first check I'd make.


1

This is highly likely pieces of debris like stems and leaves, nutshells. In the good old days if we didn't want to drop the blower motor and clean the housing out we would just put up with it until it moved further up the system and away from the happy bouncy toy we call the blower unit. A lot of newer cars (i don't know about yours) have an access point ...


1

Took her in to s Mercedes licensed mechanic, they took apart the assembly. Turns out the Up motor worked fine, but the Down motor was burt out. It's possible a similar situation could be caused by something as simple as a blown fuse or a misalignment of the "scissor" bars that raise/lower the shade, but that wasn't the case here. Since it was the dead ...


1

Not actually a solution, more of a workaround: can you raise the idle speed slightly? I know it is supposed to run happily at 700-800 but I had use of a very old truck that had a problem with torque at idle that we failed to diagnose (it wasn't worth much so we didn't try too hard) and our fix was to make it idle about 120rpm faster. Solved the issue.


1

If it's a chipped key, the duplicate is probably not going to start the car, but it should open any mechanical locks the original did. I don't know any way to tell a duplicate key from an original, chipped or not, unless the duplicate is obviously cut from a generic blank. If you got a new key from a dealer, it will possibly be identical. I suppose ...


1

I'm no expert, but I have the same setup in my car. I had to install a capacitor to give the HIDs constant power so they wouldn't get power at 60Hz. However, they do turn on and off once in a while, say going through a tunnel. I haven't had a single issue with them in the last 2 years - since they were installed. As long as they have proper power when ...


1

Have you tried making sure that, for all your speakers in the car, the wire that hooks into the back of them could be loose and could be wiggling around when driving and causing it to go from bad to good connection which would cause the problem you're having. I had this same exact problem in my Honda Civic Also, have you made sure that all your speakers are ...


1

Mercedes Benz repair manuals are very well kept by the company. Haynes or any other repair manual providers usually don't touch upon these vehicle. The reason is due to the complexity of the the vehicles systems. Most issues have to be diagnosed using Star Diagnostics (factory scan tool), and Documentation for disassembly & reassembly procedures, ...


1

The problem may be lack of power for the weight of the vehicle. (I'm unfamiliar with your model, so no idea if this would be normal). Your 215/82 R14 wheels seem tall enough to get over the average curb. As a solution, you can either attempt it with a bit more momentum - rather than coming to a dead stop, roll up and over it at walking speed - or ease the ...



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