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1986 190D Mercedes shut off problem?

Possible Causes of Stalling in a 1986 190D Mercedes:

1. Fuel-related issues:

- Clogged fuel filter

- Faulty fuel pump

- Blocked fuel lines

2. Electrical issues:

- Bad ignition switch

- Corroded battery terminals

- Faulty ignition coil

3. Airflow problems:

- Dirty air filter

- Vacuum leaks

4. Coolant temperature sensor:

- If the sensor is faulty, it can send incorrect signals to the engine control unit (ECU), causing the engine to shut off.

5. Fuel injector problems:

- Leaking or clogged fuel injectors can cause the engine to run lean or rich, leading to stalling.

6. Idle air control valve (IAC):

- A faulty IAC can cause the engine to idle too low or stall.