The spark plugs are responsible for the efficient combustion in your Mercedes. The spark plugs can get damaged due to extreme temperatures, debris and normal wear. You get poor acceleration and the Mercedes gets hard to start. See the slideshow for the common signs of damaged spark plugs in Mercedes.
11. Failed spark plugs can cause
the engine to misfire and
affect its performance.
12. Misfired spark plug will
cause numerous issues in
the Mercedes such as:
Damage the exhaust by dumping raw fuel
Reduce the fuel mileage
Increase the exhaust emissions
Damage the catalytic converter
Reduce engine power