The driver's side lock unlocks and locks the other doors, gas panel, and trunk, depending on how you have set the trunk lock. If you have one you can figure out the trunk if your system is working. There are two settings.
You can NOT lock the driver's side door if the door is open. This is to prevent you from locking your key inside.
To replace the ignition switch on a 1982 Mercedes 300SD, disconnect the battery and remove the horn pad. Locate the wire behind the horn and remove.
UNLOCK THE HOOD AT THE HINGES AND FLIP THE HOOD ALL THE WAY UP, THEN THE SPRINGS WILL COME RIGHT OUT
Pull out the instrument cluster so that you can gain access to the ignition switch housing. With a hammer, tap (do not beat) the housing while you turn the key. Once the key is turned, it would be a good idea to remove the tumbler unit. You can start the car by pushing the tab to the switch housing while twisting the inner piece. Order a new switch housing from PerfomanceProducts.com ($120).
there are NO 1882 300sd, 1982 all has 4 speed at.
They both are the W123 body type. A 240D has a 2.4 liter 4 cylinder diesel engine, and a 300SD has a 3.0 liter 5 cylinder turbocharged diesel engine. The 300SD is also a higher end S class model.
7.5L
5,020 mm (197.6 in)
slow
I didn't know 83's had a lock. Open the trunk, and look behind the coverings toward the back of the fuel door. You can unlock it from there. My 84 300sd didn't have this feature, but both of my 89's do.
wiggle the shift lever, or try it in neutral, might be the safety switch on tranny
No coolant, bad thermostat, bad heater fan
yes