On a 1999 Mercedes CLK430, the OBD2 connector is typically located under the dashboard on the driver's side. It can be found near the steering column, often just above the brake pedal or to the left of it. You may need to remove a cover or panel to access it easily.
It is located on the driver's side on the firewall next to the Break vacuum pot or cylinder. This description fits the 1999 and 2000 models and i am not sure about other models.
It's called the Data Link Connector (DLC) and is found above the emergency brake pedal.
To remove the timing cover on a 1999 Mercedes CLK430, first, disconnect the battery and drain the engine oil. Then, remove any accessories or components obstructing the timing cover, such as the serpentine belt and pulleys. Next, unbolt the timing cover using the appropriate socket size, being cautious of any hidden bolts. Finally, gently pry off the cover, ensuring not to damage the gasket or surrounding components.
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Rear Quarter window.
Where is the brake switch in Mercedes Benz E320, 1999 located? How do I replace it?
On my 1995 Mercedes Benz E320 where is located the crankshaft position sensor?
under the hood on the drivers side wall
under the front bumper
Mounted on top and inside the fuel tank.
The DLC connector is located under the dash on the drivers side, above the acellerator pedal and attached to the console.
It is located on the rear of the transmission, on the drivers side of the truck. It has a 2 wire connector attached to it