2020 Mercedes-Benz Sprinter

The 2022 Sprinter's 2.0L OM654 four-cylinder diesel engine experiences frequent diesel particulate filter (DPF) regeneration failures, particularly in vehicles used for short-distance city driving and delivery routes. The DPF clogs prematurely, triggering check engine lights, reduced engine power (limp mode), and 'Visit Workshop' warnings. Soot accumulation can become so severe that a manual regeneration cannot clear it.

Dealer performs a forced DPF regeneration using XENTRY diagnostics. If the soot loading exceeds 80%, the DPF must be removed and professionally cleaned or replaced. Reference Mercedes-Benz TSB LI18.60-P-068432 for DPF regeneration procedures. Extended highway driving at regular intervals helps prevent recurrence.

The diesel exhaust fluid (DEF/AdBlue) system in the 2022 Sprinter is plagued by issues including DEF injector failure, frozen DEF lines in cold weather, faulty DEF quality sensors giving false readings, and SCR catalyst efficiency codes. The system can count down a restart limit, eventually preventing the engine from restarting if the fault is not corrected. This is one of the most common complaints among Sprinter fleet operators.

Dealer replaces the DEF injector, DEF heater, or DEF quality sensor as needed. The SCR catalyst may require replacement if contaminated. Reference TSB LI18.71-P-069987 for DEF system diagnosis. A software update to the engine control module may extend the restart countdown timer.

The Sprinter's sliding side door develops premature wear in the roller and track mechanism, causing the door to become difficult to open or close, make grinding noises, and in some cases fall off the upper track. The issue is exacerbated in commercial use where the door is opened and closed dozens of times per day. Cargo van versions with heavier doors are more prone to the problem.

Dealer replaces the worn upper and center track rollers and lubricates the sliding door track. The door alignment should be checked and adjusted. In severe cases, the entire sliding door track assembly requires replacement. Reference TSB LI67.20-P-062110 for sliding door diagnosis.

The 2022 Sprinter's 9G-TRONIC transmission oil cooler lines can develop leaks at the crimped connections, leading to transmission fluid loss. Owners notice red fluid under the vehicle, transmission overheating warnings, and eventually harsh shifting as the fluid level drops. The leak typically occurs where the metal lines connect to the rubber hoses near the transmission cooler.

Dealer replaces the transmission oil cooler lines and adds fresh MB 236.17 transmission fluid. The transmission cooler itself should be inspected for damage. NHTSA Recall 22V-590 covers certain 2019-2022 Sprinter models for transmission fluid leak at the cooler line fitting.

The Sprinter's soy-based wiring harness insulation is highly attractive to rodents, and the large underbody of the van provides ample space for nesting. Rodent damage to wiring harnesses causes intermittent electrical faults, check engine lights, ABS malfunctions, and communication errors between control modules. Fleet operators parking overnight report particularly high incidence rates.

Dealer inspects and repairs the damaged wiring harness sections. Rodent-deterrent tape (Mercedes-Benz part number A 000 989 10 75) should be applied to vulnerable areas. Aftermarket ultrasonic rodent repellers and mesh wire protectors can prevent future damage. Comprehensive insurance may cover rodent damage.