Top 20 1985 Mercedes-Benz S-Class Questions & Answers

With the little information you provided, My first suggestion in s a faulty pick-up coil in one of the distributors. Because you are missing half of your cylinders, your problem is likely isolated to one of the two distributors. If the Cap/rotor are good on both, the pick up coil (or equivalent) in one of the distributors may be faulty and will cause all the plugs on it to not fire.

It sounds like a vacuum leak. Check all your air hoses. If there is a leak, the engine is getting too much air before the airflow sensor and after the start up boost of fuel to the engine (usually about 10 sec) the engine goes back to normal mode fuel delivery and the engine dies because the air to fuel ratio is too lean. You may have knocked a hose of or torn it when doing the service.

isle speed sensor failing....or possible failing fuel pump...

See if there is a child safety lock on the doors and put it in the "no safety" lock position.

This is not a too difficult job but there are things you will need to know..

You can get all the information you need at: http://www.alldatadiy.com/

This will give you updates, parts costing, recalls, torque figures, capacities, how to's and spec's you'll need.

This is same information used by the automotive shops.

One year subscription is enough time to download all you need on your vehicle for future reference.

its not a fuse its the flasher relay they are located under the main fuse holder under the hood on the driver side they are square there should be three one for the fuel pump one for the electrical panels and lights and horn and the other is the one for the flashers your better off replacing them all since electrical parts are mostly the same age replacing one may fix that problem now but happens when one of the others goes out and your in the middle of no where in the middle of the night since your going to be replacing one its better to replace them all to save a head ache for later just the same as any car part like the radiator hoses if one is worn and leaking then the other maybe the same but has not formed a hole yet its always better to think ahead then to think about what is going on at the time of the problem just something to think about

Never gonna find that. However you can buy a repair manual from haynes or even go to a dealer and they can get the book for you and some can even get you the manual on dvd

Question edited for clarity, add maker and model. Question moved to model category. Help and videos https://www.google.com/search?q=W220+bypass+airmatic+compressor ..

Pull the fuse that does the audio system, count to 10, put it back in and try again

1. buy the shop manual
2. or get car serviced, with MB shops that ever saw one.before.
3. look at it and say to self what needs to be pulled first, things easy, bingo now you did it all by your self ,just looking first
4. gets some quotes on this job , ask for the labor estimate and be in for shock. MB shoe horned cars. V8 huge and body small.(there)

You will need to trace the wire back towards the supply of power, could be a loose connection for example

It is called Parasitic Draw, one item is being left on and is draining power. Attach an ammeter to the battery. Remove fuses one at a time, keeping an eye on the ammeter. When you pull one fuse, you will see the reading drop a lot. That circuit is the one causing the problem. When you know the fuse, you can check all the things it covers. There will always be some draw because items like the clock and a number of modules are constantly powered. In general terms, you can't find work-arounds for problems like this, you have to fix them. Or, you can take the vehicle to a good auto-electrician.

The most common 3 reason why your Mercedes is running rough are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. Clean out the throttle body and make sure there is no ware at the butterfly pivot shaft .

https://www.cargurus.com/Cars/Discussion-t22789_ds1048635

Sounds like you have blown a hydraulic hose that operates the top mechanism. You will probably need to find a local mechanic that is experienced with hydraulic operated tops or a dealership. But check you owners manual. Most manufacturers have a manual way of operating the top to allow you to secure it until repairs can be made.

check fluid level and all connections

It probably lost the rolling code, you need to find your owners manual and reprogram the system with your garage door opener, or the learning button on your garage door unit.

I think you could use this manual method instead.. My nephew use it to repair my car and it's totally repaired now. Here's the website he bought it from. reliable-store

If you're finding it difficult to service/repair your car, get one of those online manuals. You'll not have to wait for others to answer, or rely on mec hanics and all. Plus i know a website that sells very cheap but very very good manuals online, without expiry i.e. for lifetime. for this u can try reliable-store which is pretty good

I've had a few Mercedes and I seem to remember they had a fusible link between the fuse box and battery. It is a metal strap that will open under excessively high current.