Van Guide

Mercedes Sprinter Common Problems and Maintenance Tips

The Mercedes Sprinter is known for longevity but can suffer from rust, injector issues, and electrical faults as it ages.

The Sprinter has a strong reputation for durability and high mileage, but it has some known problem areas. Rust on the front wings and door bottoms is common on models up to 2018 — Mercedes revised the corrosion protection on later models. Injector failure on the 2.1-litre and 3.0-litre V6 diesel engines is a known issue, with symptoms including rough idling, smoke, and poor starting. Electrical problems — particularly with the SAM (signal acquisition module) that controls lighting and wipers — can cause intermittent faults. The 7G-Tronic automatic gearbox should have its fluid and filter changed every 40,000 miles to prevent premature failure, despite Mercedes's life-of-vehicle claim. Regular maintenance is the key to reaching 200,000+ miles reliably.