Wait till you have the problem that I had with my 81 300SD. My SO drove it to work, locked the driver's door and walked away. For some reason she had to return to the car. The door locks were steadily cycling, lock, then unlock. I had her to unlock it with the key and try again, it still did the same thing. She left it unlocked till she got home, I never could get it to do it again in the next 2 years that we drove that car! Go figure

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1971 R600 Mack toterhome (SuperDawg)
99 NU-WA Snowbird 34+2 SE 102 5er
If it's not diesel, it's not in my stable!
53 F100 617.951/auto
95 Dodge 3500 Cummins/5 speed service truck