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Old 05-12-2003, 10:45 PM
Duke2.6 Duke2.6 is offline
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Join Date: Mar 2003
Location: Southern California
Posts: 2,011
The locks on my '88 190E 2.6 are electric solenoid actuated. You can tell by the sound and lack of vacuum plumbing. I believe some older Merc models might use a vacuum system.

You should be able to lock and unlock both front doors manually. (I know mine will when the battery is disconnected.) If not there is probably a linkage problem inside the door.

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