Cleaning and care 289 R seals R electrical connectors After the automatic car wash, remove the wax from the windscreen and the wiper blades. This prevents smearing and reduces wiper noise, which occur as a result of residue on the windscreen. ! Vehicles with Mercedes-Benz protective chassis sealing: R do not use high-pressure cleaners with round-spray jets for cleaning Cleaning the engine R only clean with the water pressure up to a maximum of 30 bar ! Observe the following notes when clean- ing the engine. This avoids malfunctions and damage to the engine.
R clean the vehicle with a water tempera- ture up to a maximum of 40 † R keep a distance of at least 30 cm between the nozzle and the vehicle You could otherwise damage the Mercedes-Benz protective chassis sealing. R When using high-pressure or steam cleaners, do not point the spray directly at electrical components and electric cables. Maintenance and care H Environmental note Only wash your vehicle at a wash bay designed for this purpose. Dispose of empty containers and used cleaning products in an environmentally responsible manner. R Make sure that no water enters the air intake and ventilation openings. R Treat the engine with preservative agents after it has been cleaned.
When doing so, protect the belt drive system from the preservative agent. Please also observe the information provided for cleaning the radiator ( Y page 301). R Only use wax-based protective agents for engines that comply with Sheet No. 385.4 of the Mercedes-Benz Specifications for Service Products. Automatic car wash ! When using high-pressure or steam clean- ers, do not point the spray directly at radi- ator core fins, electrical components or electric cable ends. G WARNING Braking efficiency is reduced after the vehicle has been washed. There is a risk of an acci- dent.
After washing the vehicle, brake carefully while paying attention to the traffic conditions in order to restore full braking efficiency. In addition, observe the notes in the "High- pressure cleaning" section ( Y page 288). Cleaning light-alloy wheels ! Before washing the vehicle in an auto- matic car wash, fold in the exterior mirrors and switch off the windscreen wipers. Oth- erwise, the exterior mirrors and windscreen wipers could be damaged. Make sure that the exterior mirrors are fully folded out again when you leave the auto- matic car wash. ! When cleaning the light-alloy wheels, do not use any acidic or alkaline cleaning agent.
They may corrode the wheel nuts or the locking springs of the wheel balance weight. ! Do not point the water jet of high pressure or steam cleaners directly at the balance weights of the light-alloy wheel. They may become detached and lead to imbalance and increased tyre wear. Wash off excess dirt before cleaning the vehi- cle in an automatic car wash. Z