The following procedure applies to most older MBZ models. On several models including the 300E the Amplifier is more accessible; it is either in a compartment under the carpet on the front passenger-side footrest or above the driver's left knee. If so, ignore the procedure below; there is no extra bracket. If you're unsure about the location, contact your favorite local mechanic or Mercedes-Benz dealer; they can tell you exactly where to find the Amplifier and how to remove it.

• On early models (from 1976 through about 1989) the Amplifier is generally found mounted nearly vertically on the driver side near the brake pedal and firewall. It is necessary to remove the kick panel.

• The Amplifier is housed in an aluminum can that measures approximately 1.25x4x6 inches.

• One end of the Amplifier has a male pin connector. The pre-1981 models have 10 pins (numbered 3-12) and the later models have a 14-pin connector.

• The can has a riveted bracket which is held to the next bracket (which we'll call bracket #2) with two phillips screws. These screws can be very tight and the top screw is almost inaccessible.

• Bracket #2 is held in place by a single 10mm bolt. Here's the trick: Take off bracket #2 first. (Don't mess with the phillips screws until you get the Amplifier and bracket #2 out of the vehicle.) The easiest way to remove the 10mm bolt is with a 10mm socket, a short extension (2") and a small ratchet wrench.

• Carefully unplug the harness. (Before reinstallation, you should examine the female pins for good electrical connection. It might be advisable to crimp them slightly (and carefully) with small needle-nosed pliers.

• Once the Amplifer is out of the vehicle, if you find the phillips screws are too tight, leave bracket #2 on; it won't hinder our remanufacture.

• Please see our "Interchange Document" or "Price List" for possible part numbers to make sure that you have actually removed the Cruise Control Amplifier.

General Development Laboratories
121 Easter Street
Morro Bay, CA 93442

805 772-5588