Move the selector lever to P and switch off the engine. Gradually raise the engine speed to 950 RPM. Allow the engine to idle for an additional 2 minutes.ĥ. Apply the service and parking brakes, and move the transmission selector lever to D.Ĥ. Press the A/C button to turn the climate control off.ģ. Engage P and allow the engine to reach normal operating temperature.Ģ. Warning: Perform this procedure with the vehicle on a firm surface (not on a lift) after ensuring that no danger exists to surrounding personnel or property.Ĭaution: Do not exceed the engine speeds and time durations listed.ġ. To expedite the adaptive learning process for some functions of the ECM, perform the following procedure: Repeat the procedure for the passenger door window. ![]() Close the door to verify that the window closes.Ħ. Open the door to verify that the window drops 12 mm. Raise the window to its fully up position and hold the switch in the up position for 5 seconds.ĥ. Lower the driver's window to its fully open position and hold the switch in the down position for 5 seconds.Ĥ. Enter the vehicle and ensure that both of the doors are closed.ģ. RESETTING XK8 DOOR WINDOW POSITION MEMORY:ġ. reset the window position memory perform the Engine Control Module (ECM) adaptation sequence.If the cable makes momentary contact only, wait another 30 seconds before trying again. * Always make a "clean" final connection. *After disconnecting either or *both of the vehicle battery cables, at least 30 seconds before reconnecting the last cable. This bulletin describes the proper procedures to follow.Īlways disconnect the battery negative cable before disconnecting or reconnecting any control module.ĭisconnect the negative cable first and reconnect it last. In addition, disconnecting and rapidly reconnecting the vehicle battery can inhibit the operation of the analog clock. * On XK8 vehicles, the window position memory is lost whenever the vehicle battery is disconnected.* Issue: * With the introduction of multiplexing on the XK8 and V8 Sedan Range vehicles, it is imperative that the vehicle battery is disconnected prior to disconnecting and reconnecting any control module Failure to follow this procedure could result in permanent damage to the modules and/or a module causing vehicle components to operate.* Perform the Battery Reconnection Procedure Installation is the reverse of removal.Ģ. Disconnect the negative lead from the battery terminal.ġ. Slacken the clamp of the negative lead at the battery terminal.Reposition the front edge of the side trim for access to the ground stud. Every time you open the door on the car the large ABS/SBC pump motor goes on to charge the accumulator. But it is the stuff that the car constantly monitors - the pressure in the Brake and ABC system that are the really big draws. Remove the luggage compartment floor panel (when standard size spare wheel is supplied) and the battery cover.ģ. The sound systems draw a lot - 400 watts original, I have an 850 watt in my SL500 now. Ensure that the doors remain open until after the battery has been disconnected.Ģ. Open the driver's door, or both doors if necessary, to allow the side glass to drop. In many Mercedes-Benzs, the transmission "learns" how you drive over time and makes adjustments, so you may experience altered driving dynamics as your car re-learns your driving style after changing the battery.1. If you can't find it, call Mercedes-Benz and they will give you the code for free. Check for this code in your owners manual - it will usually be either a sticker or small card in the booklet. Place the red lead through the metal circle at the end of the negative battery cable. ![]() Attach the multimeter to the negative battery cable and terminal. 4 5 Choose a digital meter than can read up to 20 amps and down to 200 milliamps. In some SL500s, you may need to re-enter a security code to get your radio to work again. Set the dial on the multimeter to measure amps. When you reconnect the terminals, your radio presets are likely to be cleared out. Replacing the battery in your SL500 involves removing the terminals. Although some batteries last much longer, most batteries begin breaking down chemically after four years, so you could experience dimmer headlights and other negative effects before you have a dead battery in your SL500 that you need to replace. We recommend changing the battery in Mercedes-Benzs every 4 years. The video above shows you how to replace the battery in your 1998 Mercedes-Benz SL500.
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