Critical Role of Quality Fuel Filter for Classic Mercedes M112/M113 Engines
- Clogged injectors cause rough idle, power loss and increased fuel consumption; a full set of injectors for W220 S500 costs over $2,200 to replace.
- Contaminated fuel accelerates fuel pump wear, leading to sudden failure and vehicle breakdown, especially dangerous on long-distance highway trips.
- Poor quality seals cause fuel leakage, creating fire hazards and failing road safety inspections in EU and North America.

