1999 Mercedes-Benz CLK - Answered Questions & Fixed issues

I have had a similar problem quite a few years ago. You don't mention the model or year of your vehicle. It could be a relay that is on the firewall just below or behind the firewall in engine compartment in front of driver's side of the car. It took a really savvy MB mechanic an hour to locate and fix after 2 months in other shops, including an MB dealership. Mine was a 1988 560SEL that had that problem. After that was fixed, it worked perfectly for another 5 years - at which time I sold the car. I hope this helps...

If the airbag light is on something in the system is broken. Go to AutoZone or similar and have them scan the airbag system for codes. My guess would be a faulty seat sensor or a faulty seat belt sensor

Check the owners manual.

MB doesn't use a reset switch (AKA Inertia switch) for the fuel pump

on most cars, you need to change the neutral safety switch. this car has a neutral parking position sensor, you can find it for v6 not v8, it also fits a saab 9-3. it is the same thing, a different style. however, check the transmission fluid level and troublecodes for p07xxs. reset the code and use the transmission dipstick by dorman add lucas auto trans fluid, not stop slip to the fill line. most of the time it's not the solenoid, but the auto trans plate, overfilling the fluid can cause it to trigger a check engine light, and the fluid leaking onto it can cause it to be permanently damaged, it's more than $400 for the part. lucas works in the 722.xx transmissions, most , all, clks 99-2002, just make sure the tranny model isn't a 238. i like it better than atf 134. However, these parts are very heat sensitive. fill the trans fluid, reset the troublecodes, do a general motos drive cycle from obdii.com if it doesn't drive good after four times, change the neutral safety switch. :)

under the hood, the fuse box on the left side rear back corner, it clips up from the front and has two catch hooks on it. the fuse is number 23 and it is a blue 15 amp ATC big blade fuse, get a variety pack for $4.99 at your local auto parts store. :) the numbers for the fuses are beside each slot.

More details required pls.

Well, first, the battery is not dead. You could have a poor electrical connection somewhere between the battery, starter, ignition switch, or another component of your start circuit, or possibly a failing starter solenoid, or ignition switch. Some electrical testing will be necessary to find the problem. A quick check the next time it won't crank over, is to pull the starter solenoid wire off and check for power on the wire when key is held in crank position. If power then, probably a failing starter solenoid. If no power there, then you have to diagnose the start circuit back through the ignition switch to the battery. Are all your battery and ground connections clean and tight? Starter connections? Use process of elimination, use care, and you'll find the problem.

bad starter.

Yourself at home ? No experience ? Watch the Video

Here is how I adjusted my parking brakes: Jack rear of car up and place on jackstands (safety first) Take the rear wheel off, observe how freely rotor turns while turning by hand. Align one of the lug bolt holes with the adjusting wheel inside. Mine was at alignied with one of the holes at the 2 o'clock position. Hold a flashlight into the hole to see what the tooth of the wheel inside looks like and insert a flat blade screwdriverthrough the hole and catch beetween 2 teeth.Start moving the screwdriver handle upward (tip of the screwdriver moving downward)to turn the adjusting wheel clockwise, do about 2 turns and turn the rotor to see if there is a slight resistance turning the rotors and adjust more or less depending on the resistance.You only want some slight resistance to much and it will drag all the time and wear out your parking brake pads prematurely

Yes, it is totally normal for your Mercedes battery to go dead after 4 weeks of non use due to the onboard computers that drain on the battery. I store my Mercedes for up to 5-6 months at a time. The solution is to install a battery tender that plugs into a power outlet in your garage and this will maintain proper charge in the battery and then will shut itself off until the voltage drops below the threshold again , then will kick on and bring the battery up to full charge. Any auto parts store, ie. Napa, Auto Zone, Pep Boys, etc. carries them. Cost is approx. $35-$45 and take the average person 1/2 hour to install.

it time for service or the filter are choked

NO that is very dangerous to you and to others. you could loose control very easy & have other issues to contend with. Your steering & braking will be altered you might even hit someone.

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some cars have a floor panel that will pull up.Then you will see a main positive cable you can connect jumper too,and ground to metal or brown ground wire

Do you mean the Trunk is powered?Can you reach the starter terminal?See the heavy lead coming to the starter?If so, carefully attach a positive jump lead, connect to another car or battery positive, connect the negative lead from the car/battery to a clean engine casting , then open the trunk and jump the car as normal.

Manual for 320Here is the documentation for coupe. Go to page 96 or search index. The trunk release is on the drivers door, lower two buttons.

trunk key locked in trunk

check gear box oil level if there is not enough oil in system it doesent go into gears properly