DL501 Ultimate Mechatronic Rebuild Kit

Below is a list of symptoms that this kit was designed to fix.

• Jerking when starting in shifter position D or R.
• Jerking when stopping or shifting from 2nd to 1st gear.
• Switching on or off when changing the shift lever position (D and R).
• Delayed engagement when letting off of the brake (especially with a slight incline).
• Engine speed drops too high when switching from 2nd to 1st gear.
• Engine speed drops too much when the selector switch is set to D or R.
• "Transmission error!" message appears in the display of the driver information system.

List of codes related to failing Mechatronic Unit

• DTC P17D8 (Torque limitation because of clutch temperature) with symptom code 8040
• DTC P0726 (RPM signal of engine control unit, implausible signal) with symptom code 7980
• DTC P174B (Valve 4 in the sub-gearbox 1, electric fault) with symptom code 8027
• DTC P174F (Valve 4 in the sub-gearbox 2, electric fault) with symptom code 8028
• DTC P179C (Main pressure valve, electric fault) with symptom code 8029
• DTC P179D (Coolant oil valve electrical fault) with symptom code 8030
• DTC P174C (Partial transmission 1 valve 2 Electrical error ) with symptom code 8026
• DTC P174A (Valve 3 in the sub-gearbox 1, electric fault) with symptom code 8939
• DTC P174E (Valve 3 in the sub-gearbox 2, electric fault) with symptom code 8940
• DTC P1740 (Clutch temperature monitoring) with symptom code 8031