In Episode 15 of the Quest for Perfection on the 1997 BMW E36 M3 Sedan, I steam-clean the door jams and door sills of the vehicle and recondition them to nearly-new. A steamer makes the job easy, but you can also use your favorite all-purpose cleaner and elbow grease to achieve the same results.
The door jams and sills are often one of the most neglected parts of the vehicle. They take a lot of abuse and rarely see a good cleaning. You’ll impress your car buddies when you open your car doors and let your door jams and sills glisten. Its a part of the car that rarely looks good so when it does — it really stands out.
Not a lot of talent or experience needed to perform this job. Just time, patience, and a bit of work ethic. What a difference it makes however and it’s one of those tasks that does not need to be done very often if you do not drive your car in rain or snow.