20 Most Recent 2003 Mercedes-Benz SL-Class - Page 8 Questions & Answers

their easy two bolts on the back of the handle hold it on ,just had one of these taken away for junk as i got fed up with this rust hulk laying their ,still have the headlights and back lights though it even ran but no papers ,couldnt give it away with no papers though so scrap yard took it

the oil filter is in a plastic container at the front of the engine with a 24mm bolt head on top if i remember rightly or was it a 32mm ,As for wheel -- well the customer picked the car up last week so i couldnt tell you ask in the dealers though

The way to do that is get the firing order of the engine and the rotation. The # 1 position is usually marked on the distributer cap. If the rotor turns clockwise the wires on the cap will be in the fireing order sequence on the cap in a clockwise direction. If the order is 1432 , 1 to # 1 plug next on the cap in a clockwise rotation on the cap is 4 goes to #4 plug and next is 3 to #3 plug etc.

Depends on year but usually under the passenger side under the car.

Hi! Are you referring to the lower control arm bushings?

The reason why the top gets stuck is because of the two flaps at the back. The problem is that the metal bracket under the flap gears have bent and then the gears don't open/close correctly. They have a micro switch inside which tells the roof when the flaps are closed. Have the metal bracket looked at and then adjusted

When the engine light comes on it means a number of things could be wrong. Because it comes on when something in the car is broken. You would need to take it to a shop and get diagnostics ran on it. Hope this helps!!


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Most likely low freon tripping the relay so as not to hurt the compressor. Ambient temp has alot to do with it. Low side should be pegged on the gage when reading with motor off. While running with full a/c at ilde should be arout 50 psi, at 2000 rpms should be at least35 psi. When outside temp drops it will turn the Klima relay off or when pressure drops while running it can shut off. If the pressures are correct the pressure switch on the drier could be bad.

Hi

The only tools needed are a ratchet, a 8" -10" extension and a socket 14 mm. (size of socket may vary). Here is a picture of the starter to help identify the position of the bolts.

If Bolts are too thight, use a 1/2" ratchet or breaker bar to get a better grip, be carefull not to strip the bolts head.

For 1990 MERCEDES-BENZ SL 500: 225/55ZR16 Z (Goodyear Tires)

Check HERE to calculate the approx. tire size that you could using.

Check this sample...
Step 1 Locate the OE tire size. This is located on the sidewall of the tire and looks similar to 245/75R16.
Step 2 Note the width of the tire. In the case of our example, 245/75R16, 245 represents the width across the tire, in millimeters, from the widest point.
Step 3 Calculate the sidewall height of the tire. In our example, 245/75R16, 75 represents the height of the tire's sidewall, from rim to tread, as a percentage of the the tire width. This is also known as the tire's series. The example tire has a sidewall height of 183.75 millimeters or 7.23 inches.
Step 4 Locate the wheel diameter. This is the last number in the tire size. In our example, 245/75R16, 16 is the wheel diameter, in inches, on which the tire is intended to be mounted.

Calculating Tire Diameter
Step 1 Calculate the overall tire height, in inches, using the information you gathered from steps 2 and 3 under "Reading Tire Size" with the following formula ((Width/25.4) x Sidewall Percentage) x2. Our example tire size, 245/75R16, would have an overall tire height of 14.47 inches (245/25.4x75% x2).
Step 2 Combine the overall tire height and wheel diameter. The example, 245/75R16, would add 14.47 to 16, resulting in a final tire diameter of 30.47 inches.
Step 3 Using the 3 percent variance rule, tires of equivalent size would be between 29.56 and 31.38 inches in total diameter.

Step 2 Note the width of the tire. In the case of our example, 245/75R16, 245 represents the width across the tire, in millimeters, from the widest point.

Step 3 Calculate the sidewall height of the tire. In our example, 245/75R16, 75 represents the height of the tire's sidewall, from rim to tread, as a percentage of the the tire width. This is also known as the tire's series. The example tire has a sidewall height of 183.75 millimeters or 7.23 inches.

Step 4 Locate the wheel diameter. This is the last number in the tire size. In our example, 245/75R16, 16 is the wheel diameter, in inches, on which the tire is intended to be mounted.

Calculating Tire Diameter

Step 1 Calculate the overall tire height, in inches, using the information you gathered from steps 2 and 3 under "Reading Tire Size" with the following formula ((Width/25.4) x Sidewall Percentage) x2. Our example tire size, 245/75R16, would have an overall tire height of 14.47 inches (245/25.4x75% x2).

Step 2 Combine the overall tire height and wheel diameter. The example, 245/75R16, would add 14.47 to 16, resulting in a final tire diameter of 30.47 inches.

Step 3 Using the 3 percent variance rule, tires of equivalent size would be between 29.56 and 31.38 inches in total diameter.

Read more: How to Find Tire Size Equivalents | eHow.com http://www.ehow.com/how_5964966_tire-size-equivalents.html#ixzz0vUcTN6lm
The /55 or /60 is called the aspect ration and us use it as a percentage of the first number 225 to calculate the height of the tire's section, measured from the rim to the tread of the tire.

In this case, you're looking at lowering the height of the tire by about 11 millimeters from 135 to 123. This is less than 1/2 an inch, so the effect on your car's ride, performance, etc. is very likely to be almost nothing.

As for fitting on the original factory wheel, you're still using the same diamerter tire (R16) and the width of the tire is still the same (225) so unless the tire manufacturer recommends a different WIDTH of wheel from the one you have, you shouldn't have any problem. The chance of this is so low (based on the tires involved) that I wouldn't even bother to check, but if you really want to be sure, then get your tire dealer to check what size of wheel is recommended for this tire.
Read more: plus-sizing



Hope helps.

u need a service manual-haynes or clymer may do--or ask a tech at a dealer

This is a very important problem!
You needs to replace timing chain kit!
Please specify the fabrication year of the car and engine type - capacity & power, in order to can I sending you back the timing chain diagram & repairing procedure.
I'm waiting for yours reply.

Hi, we chatted before. Is it possible to take a picture and post it on this page?

All the info should be in your owners manual, do you not have the manual? Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

Hi.

If you do not have any power at all, and the dash is not lighting, then check the battery connections, and the connection from battery ground to the engine body.
Also ensure you have tested the battery. Read the voltage across the positive battery terminal and a ground connection on the engine body. It must be around 12.5V
If there is no problem in there , then the problem is the ignition cylinder. The ignition cylinder can be tested reading voltages at its contacts. This in case there is no power at all.

If instead the dash is turning on, but the starter motor does not turn over, then there may be more reasons for the fault.

In the fuse box look for starter fuse and for ECM fuse , that can cut power to the starter motor.

After testing the fuses, check the starter relay, usually located in the fuse panel under the hood or under the dash. The relay must click when the key is turned (you need someone turning the ignition key). The relay can be tested in full using a Voltmeter or an Ohmmeter.
The starter relay can also be tested swapping it with a relay of the same kind.

Fuses and starter relay are the most common failure when the car dash turns on, but the car does not start.
If this test good, ensure that the anti theft system is not armed (starter should still turn over by the way).

If fuses and relay are good, read volts at starter motor, while machine is cranking. You will need to use Voltmeter on the contacts at the back of the starter motor solenoid. If there are 12 Volts at starter motor, but motor does not turn over, then starter motor or starter solenoid is faulty.

The starter solenoid can be tested using an Ohmmeter at its contact. If the solenoid is bad, reading with multimeter set on impedance, it will have no continuity (it will read infinite Ohms).

If there is no volt, or volt is much below 12 Volts, then the problem is either the ignition switch located in the steering column, or a problem concerning wiring from ignition.

The ignition switch can be tested jumping its contact, reading Volts or Ohms on its contacts. To access the switch it is necessary to take apart the steering column.


Regards.

Rust caused by salty conditions do not usually occur in this area,up north where salt is used most all winter,gets thrown up under the under carriage of vehicles,and eats away at the metal.You most likely are ok,unless the car has been up north.