20 Most Recent 1999 Mercedes-Benz M-Class - Page 4 Questions & Answers

White smoke on start up. A) The way it goes is whitish blue smoke your burning oil.
B) Whitish grey smoke your burning coolant ( coolant leaking in cylinder) Coolant resovoir should be milky substance.
C)Black smoke buring rich.

Sounds like a problem with your crankshaft position sensor.

Sorry we can not give out codes. You will need to go to the dealer to get the code for your car.

OKAY WHAT ELSE HAVE YOU ALREADY DONE?
AS IN THE ONE ANSWER THAT WAS PROVIDED:
HAVE YOU CHECKED FOR VOLTAGE AT THE BULBS?
IF THERE IS VOLTAGE ---CHANGE THE BULBS!
IF THERE IS NO VOLTAGE AND INOW YOU ARE SAYING THERE IS VOLTAGE COMING OUT OF THE BRAKE LIGHT SWITCH THEN YOU HAVE:
A SHORT IN THE WIRING BETWEEN THE SWITCH AND THE BULBS.
YOU CAN USE THE COMMENTS SECTION OF THE POSTED PROBLEM AND ANSWER GIVEN TO RESPOND.

1) Unplug the Brake Light Bulbs and with a Voltmeter, check for voltage on both sides.
2) If you have voltage: change the bulbs and recheck operation.
3) If you do NOT have voltage: go under the dash on the drivers' side. Look up onto the arm of the Brake Pedal. There should be a switch behind the arm, On the switch should be a plunger. With a partner at the rear of the vehicle: Depress the plunger in, and have your partner check for Brake Lights.
4) If you now have Brake Lights: the plunger and/or switch can be adjusted. The Brake Arm when depressed, pushes-in the plunger activating the Brake Lights. Some Plungers can be unscrewed (counterclockwise) to shorten the gap to the Brake Arm,
5) If you still have NO Brake Lights: Twist the Switch/Plunger 1/4 turn, removing it off the support bracket. Unplug this Switch and again check for voltage.
6) If you have voltage: the Switch is bad and needs to be replaced.
7) If you still have NO voltage: Check the fuses.
Let me know if this helped, or if you have any additional information or questions. Feel free to contact me at FixYa.com!

Hello! When you purchased your Mercedes a card (similar to a bank card), which has the radio code stamped on, should have accompanied your owners manual. If not visit your dealership and they can give you the code. Turn on the radio, punch in the code, and radio will come on. Any time your battery is disconnected, when you power back up the radio code must be re-entered.


Guru...............saailer
I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

to get the radio code you need to get the serial number from the back of your radio unit,,call your local dealer, give them the number and they will give you your radio code

Preview, I suggest check it this items:


Symptom: No Start
Priority Action Part Type Cause 1 Inspect Ignition Switch Improperly Connected or Faulty Ignition Switch. 2 Inspect Battery Battery Discharged or Faulty. 3 Inspect Battery Cable Coroded, Broken, Shorted or Poorly Connected Battery Cable. 4 Inspect Solenoid Switch Starter Solenoid Switch Faulty. 5 Inspect Starter Starter Motor Faulty. 6 Inspect Wireset Worn or Damaged Spark Plug Wires. 7 Inspect Coil -Ignition- Faulty Ignition Coil. 8 Inspect Distributor Cap Loose, Cracked or Worn Distributor Cap. 9 Inspect Spark Plug Incorrectly Gapped or Fouled Spark Plug(s). 10 Inspect Distributor Cap and Rotor Kit Loose, Cracked or Worn Distributor Cap. 11 Inspect Fuel Tank Fuel Tank Empty. 12 Inspect Carburetor Worn, Faulty or Damaged Carburetor. 13 Inspect Fuel Pump Faulty Fuel Pump.


Symptom: No-Start Condition
Priority Action Part Type Cause 1 Inspect Choke Thermostat Stuck or Improperly Functioning Choke Thermostat. 2 Inspect Fuel Filter Clogged or Dirty Fuel Filter. 3 Inspect Relay - Fuel Pumpat Faulty Fuel Pump Relay. 4 Inspect Fuel Injector Pressure Regulator Faulty Fuel Injector Pressure Regulator. 5 Inspect Fuel Pump Low Fuel Pressure. 6 Inspect Engine Control Computer Incorrect Operating Information Being Delivered and Sent From The EEC. 7 Inspect Fuel Pump Strainer Clogged or Dirty Fuel Pump Strainerat.

I hope help you with this.

19.8 volts is too high. the alt regulator is not working. The regulator needs a battery source feed to work. Both the feed for the regulator and the connection between the output post and the positive battery terminal should go through an ALT fuse. Start by checking that.

Try books4car.com for new or Ebay or a local salvage yard. for used

Check the manuel or in the glove box, and the drivers door jam for a radio code sticker. if that does not work try 0000 and all else fail log on to www.radio-code.com and they can get the codes for you. There is a fee but it's going to be much less then the dealer. good luck and keep me posted, be glad to help and know your have your radio working again. 

Hi, Joe here The problem sounds like a faulty crankshaft position sensor. The sensor is located on the transmission bell housing on the left side. Can be accessed threw the top of the engine near the firewall.

Take the keys and the car to the dealership. You need to have them take of this because we can't fix that.

that is your starter if you replace tthe starter that will fix your problem.

hope this helped
please rate well. If you need further help, reach me via phone at https://www.6ya.com/expert/mark_445a24324be9eb03

Make Sure the Battery is Fully Charged,This can be done by Headlights or Horn.OK.

Radios naturally come with am, so it will always work so long as there's power to the radio. Fm, however, is a built in receiver and if they break or start to break, then you will lose power to your fm which it sounds like is starting to happen to you.

In the underbonnet relay box but if its not been recharged then it won't run anyway.