Hot answers tagged

13

The below are very easy checks you can do while buying a used car.(from anywhere for that matter of fact) Engine This is the most complicated/expensive part to maintain/replace. Head Gasket check: Open the oil filler cap or the dip stick for any milky white substance , like mayoneese ,if it is present then stay away , it means the head gasket is ...


7

Tyre depth gauges look something like this (amazon link) - you can buy them in any automotive store. You press the green bit against the tyre and push the middle bit into the tread groove. The slidy bit at the top will then tell you the depth. Buy one and have a play, it's easier to see than to explain! You should be able to see the 'wear bars' - raised ...


7

It means "at least". You will not cause any damage by using the higher octane fuel. The reason for the RON 95 rating in the first place, this is the lowest octane rating you can run before you might start hearing pinging or pre-ignition.


5

Can you use them? Yes. Should you use them? Depends on what you are looking for. Most of the times (not always) these special tires are just a modified version of a regular tire. What makes them special? Here is a list of common modifications: A softer compound. This typically increases grip at the expense of longevity. A special size. Sometimes car ...


5

I just repaired the identical car, the ignition does not come on and the wheels are locked and it sets steering column mechanical fault codes. This means the solenoid that locks the column to stop the wheel turning is faulty, after it receives the unlock command from the electronic ignition switch it tells the ignition switch it is unlocked and then the ...


5

I would like to add two valid points to this discussion as well: 1) When producing engines like this which produce more power with lower CC's, they won't be as smooth as their bigger naturally aspirated predecessors. They will have to rev higher just to produce the same power. So lets say you are driving at 70 MPH with a 5.0 V8, you could comfortably ...


5

It very well could be the thermostat. However, did you check the obvious things, like coolant levels and make sure you don't have any air pockets? I had an overheating issue that would manifest after 20 to 40 minutes of running the car, which was due to an air pocket. Usually if it overheats at idle you check the radiator fans, radiator fins bent or ...


4

A car battery's power will drop with temperature. It would be my first port of call. Since the car ran fine when you had it jumpstarted with the help of your friend, I would have the battery tested to make sure that it can deliver sufficient juice to the starter.


4

It sounds like the issue is with heat rejection. The tell-tale sign is that the coolant temps rise into the red when the car is at idle (low RPM, little air flow across the radiator), but when the car moves the temps drop back down to normal. So what could cause this? A couple of possibilities: low air flow Are the radiator fans turning on when they ...


4

Nope that sounds about perfect. Remember there is a spring on the radiator cap that keeps the engine coolant pressure to around 13 PSI for most manufacturers. Water doesn't boil until around 242°F (117° C) at that pressure. The manufacturers want the water to stay as a liquid because that helps the radiator work better. (Liquid to vapor transfers heat ...


3

There's a lot of good answers and discussion about electrical issues and other complicated things, but to me it sounds like the steering lock is under tension and not allowing the key to turn all the way and start. You can sit in almost any car, turn it off, remove the key, and then turn the steering wheel until it clicks into the locked state. The rubber ...


3

One important thing here. What exactly do you mean by "the engine overheated"? How do you know that? Did a light come on? Did the gauge go into a warning zone? Did the A/C quit working altogether (that's by design.. ) Did you see steam coming out from under the hood? How do you know its overheating? I'm not saying you are wrong, I'm just asking. Note: ...


3

As it's a security-specific component on a relatively new high-end car, I suspect you won't be able to use a second-hand part - You will probably have to get a new one from Mercedes. Even if you could use a second-hand one, you'll almost certainly have to take it to Mercedes to get them to reprogram it to your car.


3

I think in the C240 it is a permanent 4Matic system. As you can buy the C class without 4Matic as well. The clever systems of 4Matic wont effect fuel consumption so much so that its a deal breaker in my opinion. You could have this in the earlier (1995-1999) to turn them off but again this would have left a warning light on your dash. Which would indicate ...


3

BlueEFFICIENCY As Mercedes-Benz claims, it reduces fuel consumption by up to 12.1%, without a performance drop. They also claim that it is environment-friendly (Consume less fuel and emit less CO2) They are achieving these by doing: Reducing car's weight Lower aerodynamic drag Smart dynamo Fraction resisted tyres Transmission suggestion monitor Fuel-save ...


3

There may be a vacuum pipe that goes from the engine inlet manifold to the transmission. I have seen symptoms a little like this caused by damage to this pipe on a similar aged car.


3

Is your airbag warning light on? Especially if it is, you should check under the seat to see if any cables are unplugged - it could be as simple as that. There are also two 30amp fuses UNDER the fuse box in the engine compartment. If the seat just stopped working completely it could be one of those. You have to unbolt the fuse box cover and look down by ...


2

I've checked a number of sources and they all state that the engines in these are Interference Engines so there is a good chance of contact between the valves and the piston crowns. A compression test once the timing has been re-set would be a simple way to check if this has happened without taking the engine to pieces.


2

If the bell housings are removable, you can swap them. You may need to drill/weld a bit to get holes to line up. If they are not removable you will need to either make an adaptor plate, or cut/weld the bell housing to fit.


2

The only way to do this is to have the keys programmed to the car. The only way to do that is to take it to the dealership. They have the necessary tools which are proprietary. Only they have them. Yes, it's a racket.


2

My buddy had such problem on his MB 190E. On engines like 190's (and many other Mercedes cars of these years) there wasn't an electric radiator fans, they used something called Viscous coupling unit that transfers torque to the fan depending on the difference in angular velocity between the engine belt and the fan itself. So, primary, standing in the ...


2

I suspect the problem relates to a low battery. Actually turning the start motor is the most intensive process that the battery does. If it's low on change you can get the situation where other things will work but the starter won't turn. Your best course of action is to use a set of jump leads or use a charger to top up the battery and see what happens. ...


2

Overheating on the highway is likely due to a clog in the system, or a pinhole leak. Since your adding, I would say there is a leak somewhere. This leak is either going to be a hole in a hose, cracked radiator or leaking gasket (thermostat gasket, head gasket, etc.). If it is a head gasket, your exhaust will smoke a bit more than normal and will smell ...


2

A mechanic looked at it and determined the steering lock was the problem. He replaced it and it works now. I don't know what exactly was wrong and how a bad steering lock caused all that. I don't know what caused it. I remember the driver was fidgeting trying to get it started. Could trying to turn the key in a certain way do it? I remember this happened ...


1

I don't think this is a battery problem, given the circumstances and the fact the radio and everything else still work - but it's possible repeated failed attempts to start the car while diagnosing the real problem might flatten the battery, giving you a battery problem on top of the original problem... I'd suggest getting a couple of things as a ...


1

Years ago when I used to inspect vehicles for a living. There was one thing that would cause such nasty fumes after 30 minutes or so. It was over spray from the anti-rust coating that sometimes would end up on exhaust parts and cause pungent sulfurous stench when hot. If it were an exhaust leak it would noticed a lot sooner and have a noise as well.


1

Not exactly. The number sequence is split from 1 March to 31 August, then from 1 September through the end of February. In your case, the 51 plate is saying your car is a 2002 as 51 falls under the latter case. This, I believe, has to do with model year and when it was manufactured. Here is a breakdown in how the years suss out (taken from this website): ...


1

What are the potential problems? The battery was probably drained. This can happen for several reasons, one of which is the alternator which recharges the battery has failed. In that case the battery will not get charged and will slowly drain again. You can check this by measuring the voltage when the engine is running. If the battery is getting charged ...


1

A short or open circuit can drain the battery. I suspect that multimedia starting when reverse is selected is related to the reversing sensor option (our Golf does the same as it uses the display for the reversing sensors). The other problem that could be happening is that your alternator is failing and not charging the battery properly. Finally, make ...


1

Is the fixture getting electricity? Have you tested it with a meter? If it is, your problem is possibly just a bad bulb. If it isn't, then you have a wiring issue.. possibly a crimped or cut wiring harness, damaged during the collision. In that case, you're going to want to track it back to where it is severed, and repair it. EDIT And now that I read @...



Only top voted, non community-wiki answers of a minimum length are eligible