See our Shipping Form before sending for repair. On rare occasion, this is a repair issue and may require being sent to our shop for repair. Note - Most cases, this process takes care of all the problems mentioned above. Note - Spraying at the top of the rheostat will allow gravity to take affect and the chemical to enter the base of the rheostat.ĥ.2) Rotate control and repeat this step several times.Ħ.1) Align knob with rheostat shaft and push into place. The volume problems mentioned in this DIY can be caused by a dirty rheostat.ĥ.1) Spray a "Control/Contact Cleaner" into the top of the opening, just above the shaft at the base of the rheostat.
Depending on the direction the control is turned, the microprocessor adjusts the volume level. (The base of the rheostat is green.) When the control is turned it sends a pulse to the microprocessor in the stereo. This repair process can be attempted while car stereo is still in dash.) Note - (Again, removal of car stereo and rheostat is not needed. This is a valid part number even if the dealership says differently.ģ.1) Knob removal allows access to the volume control rheostat.Ĥ.1) Pictured is a removed volume control rheostat. Purchase at your local Mercedes parts department. Becker car stereo replacement knob part number is Q-4-82-0112. The knob's outer rubber coating can be sticky and deteriorate. We have seen the knob glued to the shaft rheostat and unable to be removed. Check the base of the knob for cracks where it mates to the shaft of the volume control.
#Mercedes w203 radio not working crack#
The plastic in the base can crack and cause the same erratic volume control issues. However, this knob also has a common problem. Note - The knob removal is a simple process. There are two manufacturer's for this style stereo, Becker and Alpine.ġ.1) Grasp the knob on the face of the stereo.
The control may seem to stop working, works sporadically with many turns, or does the opposite function when the control is rotated.
The following process is a simple Do-It-Yourself repair for an erratic volume control. We have removed this stereo from the Mercedes to aid in taking pictures for this repair. So there was nothing wrong with the Antenna Amplifier (Radio and Remote Control). As a summary - the fault was with the Alarm Siren Gizmo behind the F/N/S plastic wheel arch - nearest to the 'A' pillar.
This repair does not require removal of the car stereo. W203 Saloon 2002 Common Fault with Fuse 8 (Boot) DRDRE Thank you for the information - I have the same Fuse No.8 (7.5Amp) blowing when replaced. Dashboard LCD displays work on high temperature, so it is the best to avoid using the heat bonding procedure.Mercedes Benz Car Stereo Volume Control Repair How can we improve the quality of the LCD displays and the ribbon cables? Well if you assemble the Mercedes LCD with the ribbon cable with pressure, no heat bonding, then the pixels of the LCD display will work for an unlimited time. This means, the Mercedes LCD display show pixel failures, it needs pixel repair, but both the silver ribbon cable and the Mercedes LCD display work well - only the connection of them is bad, that is why you have LCD display pixel problems, and you need a pixel fix by a professional, or done DIY with an LCD display pixel repair KIT - a silver cable. This Mercedes speedometer assembly design makes the contacts of the LCD display and the ribbon cable loose contact very fast, most cases in just a few years. Because of this, VDO Instrument Cluster manufacturer decied to assemble the Mercedes LCD display and the silver ribbon cable with heat bonding procedure. Why do the Mercedes speedometer LCD displays fail with pixel failure? DIY Pixel repair helps with pixel failure? Well, the Mercedes speedo manufacturers have a few minutes only to produce a complete Mercedes speedo with LCD dispay and silver ribbon cable.
0 kommentar(er)
