Vehicles using M102.018 engine list:

Engine M102.018

Symptoms:
- Rough idling and stalling
- Loss of power and poor acceleration
- Increased fuel consumption
- Engine misfires or hesitation
- Hard starting, especially when cold

Diagnosis:
- Check ignition components: spark plugs, ignition wires, distributor cap, and rotor for wear or damage
- Inspect fuel system: fuel filter clogging, fuel pump pressure, and injector condition
- Examine vacuum lines and intake manifold for leaks causing lean mixture
- Test engine sensors such as the coolant temperature sensor and air flow meter for proper operation
- Perform compression test to rule out internal engine wear or valve issues

Fixes:
- Replace worn or fouled spark plugs and ignition components to restore proper firing
- Clean or replace clogged fuel filter and ensure fuel pump delivers correct pressure
- Repair or replace cracked or leaking vacuum hoses and intake manifold gaskets
- Service or replace faulty sensors to ensure accurate fuel and ignition control
- Adjust or replace distributor components to maintain correct ignition timing
- If compression is low, inspect and repair valves, piston rings, or head gasket as needed

Prevention:
- Regularly replace spark plugs and ignition parts according to maintenance schedule
- Change fuel filter every 20,000 to 30,000 km to prevent clogging
- Use quality fuel and keep fuel system clean to avoid injector issues
- Inspect vacuum hoses periodically for cracks or brittleness and replace if necessary
- Maintain cooling system to prevent overheating, which can damage engine components
- Follow scheduled maintenance for timing chain and valve adjustments to ensure engine longevity