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 Mercedes Benz - w201 chassis  190E, 190D


AUSSIE PLUG-IN KEYLESS ENTRY UPGRADE

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Install Instructions

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Keyless entry with MB factory Alarm Activation and outputs for the optional Parking light Confirmation, & Security LED

.You will need the follwing tools:

-     8 mm wrench or pliers are necessary to loosen two mounting screws on the lock actuator.

-     Long-Nose pliers are handy, but not necessary

-     Flash Light is handy, but not necessary.

-     A flat head screwdriver is handy, but not necessary.

   

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                  Picture # 1                                         Picture # 2                                              Picture # 3

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FIRSTLY, disconnect the car battery, or remove fuse # 12, which controls the central locking.

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In the trunk lid of the W201, you will see the key lock in the center, and to the right of the lock, connected with a long metal rod, you will see the ‘Lock Actuator’. If you use a flashlight, you will see a round plastic wire connector plugged into the lock actuator from the top, and a yellow plastic vacuum line connected to the bottom. You have to un-plug this round electrical connector in the actuator, and re-plug the cable into the Aussie Keyless entry control box.  Once connected, the Keyless control box will mount in the cavity next to the lock actuator, in the trunk lid.

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On some later model w201 chassis, there is a small plastic cover protecting the actuator and metal rod. Loosen by removing the 8 mm screw securing it. (Just let the piece of plastic flop around, you don’t need to remove it)  Also remove the two 8 mm screws holding the lock actuator in place, so the actuator is loose and free to move around, (Leave actuator in place).

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Now the actuator is loose, you can remove the round plastic wiring plug (usually clear in color), from the trunk lock actuator. It is jammed in tight, and hard to get to. Also, there is a plastic security clip on the side of the actuator which holds the round wiring plug in place. You need to bend this clip back while trying to separate the round wire plug from the lock actuator. Pull on the plastic body of the plug. Do not pull by the wires, as you may break them. (If you break the security clip, it’s OK). Using long-nose pliers will make this process easier. Also, you can use a screwdriver as a lever to bend back the plastic security clip, which holds the round plug in place. (On newer models, there is no security clip and the plug is a black right angle 90-degree plug, as illustrated.)

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Once you have separated the round electrical connector, plug in the Keyless entry control box to the cable that was previously connected to the actuator.

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IMPORTANT: Make sure you line the two plugs up correctly as you connect them. There are two flat surfaces inside the plugs you need to line up

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Wrap some electrical tape around the round connector to prevent it from separating due to the vibration from the closing of the trunk lid. Tie up any excess wires (except the yellow wire) in a loop and fix with the pull-tie provided. The yellow wire is the antenna. Stretch it out straight along the back wall of the trunk lid, making sure it does not interfere with the lock or actuator mechanism.

Hide the Keyless entry control box in the cavity next to the actuator in the trunk lid. Wrap the control box in some bubble wrap or foam to give it some padding, and tie it in place with a pull-tie to the vacuum line you see in the trunk lid. (The Blue 15A fuse will likely never blow, but you can install it in such a way, it is still visible and accessible.)

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Re-install the two 8 mm screws, securing the lock actuator to the trunk lid, and re-install the plastic protector covering the lock actuator and metal rod. .

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Re-connect the car battery or re-install fuse #12.

Close the doors, hood and trunk on your car and hold the lock button down on a remote for about 5 seconds, Push the Lock button on the same remote a second time for about 5 seconds, and the car should lock. You should hear the electrical relays clicking in the Keyless entry control box when operated with the remote. If nothing happens, press the UN-LOCK button twice, and commence again.

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IMPORTANT: At first, only one remote control will work until the second remote is programmed with the same key code. Either remote can be the first initiated, and either remote the second programmed with the key code of the first remote.

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PROGRAMMING SECOND REMOTE: To program the second remote to function, you need to hold the LOCK button on the working remote down for 15 seconds. Then hold the LOCK button on the new remote down for 5 seconds. Then push the LOCK button on the new remote a second time. The Car should lock. Both remotes should now have the same electronic entry code.

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USING YOUR KEYS:   If you LOCK or UN-LOCK the car with your MB mechanical key, you may have to push the UN-LOCK and then the LOCK buttons on the remote to cycle the system, as it sometimes gets confused if you use the mechanical key.

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If you should ever have a problem with the system, simply disconnect the car battery and re-connect, or remove the Central Locking fuse “#12” for 10 seconds and then re-install. This will re-initiate the system

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SECURITY NOTE

A) Providing your Factory alarm is installed and operational, this Aussie Keyless entry Mark III system activates the factory alarm in the car in all models, except the 300TE/TD station wagons. You can still activate the factory alarm, including on the station wagons, by locking your car with your regular MB key. (The Aussie keyless Mark IV model will control the factory alarm on a 300TE/TD wagon).

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B) The red button on the remote is NOT a panic button. It is for other remote programming Functions, not required on this MBZkeyless entry only conversion.

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C) The Trunk-Pop button on the remote is used as a finder to flash the parking lights if feature is installed.

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