This bulletin applies to 2019-2021 Mercedes-Benz models with electrical steering. A squeaking noise may be heard from the input shaft area. The cause is inadequate lubrication.
1 & 2: Remove the steering column lower cover. 3 & 4: Add lube to syringe. 5 & 6: Apply lube to the inside of the seal.
This bulletin applies to 2019-2021 Mercedes-Benz models with electrical steering. A squeaking noise may be heard from the input shaft area. The cause is inadequate lubrication.
Detach the lower cover of the steering column. Fill 2 mL of grease/oil into a syringe. Move downward along the input shaft with the syringe needle until resistance can be felt. Push the needle about another 4mm further so that the needle is located on the inside of the seal. Press the contents of the syringe into the inside of the seal. Remove the syringe and fully rotate left and right several times to ensure that the lube is distributed. If the noise remains, perform the lube process again.
Syringes are available as P/N W000586007200. Grease is P/N A0029890651.
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety ofspecialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.
