Mercedes classic car guide
W210/W170 relay unit faulty? Check & replace A2...
Several components fail at the same time or intermittently, but the fuses are intact? Then the fault is usually in the relay unit in the fuse box. Here is how...
W210/W170 relay unit faulty? Check & replace A2...
Several components fail at the same time or intermittently, but the fuses are intact? Then the fault is usually in the relay unit in the fuse box. Here is how...
W124/W126 A/C not working? 6-cyl relay A0025451305
The A/C compressor no longer engages even though the refrigerant and fuses are fine? On the six-cylinder W124, W126, and W201, this often comes down to a single plug-in relay...
W124/W126 A/C not working? 6-cyl relay A0025451305
The A/C compressor no longer engages even though the refrigerant and fuses are fine? On the six-cylinder W124, W126, and W201, this often comes down to a single plug-in relay...
W124 speedometer needle stuck? Replacing speedo...
Speedometer needle stays at zero even though the odometer keeps running? Here's how to narrow down the fuse, plug contacts, and speedometer on the Mercedes W124 – with practical test...
W124 speedometer needle stuck? Replacing speedo...
Speedometer needle stays at zero even though the odometer keeps running? Here's how to narrow down the fuse, plug contacts, and speedometer on the Mercedes W124 – with practical test...
W124/W201 Diesel jerks on overrun? Check the li...
Rough response on overrun, jerking during load changes, and an unsettled transition to idle on the W124 or 190-series diesel: the linkage damper on the injection pump has often lost...
W124/W201 Diesel jerks on overrun? Check the li...
Rough response on overrun, jerking during load changes, and an unsettled transition to idle on the W124 or 190-series diesel: the linkage damper on the injection pump has often lost...
W201 clock in the instrument cluster stopped? R...
The clock in the W201 instrument cluster has stopped, runs slow, or loses the time every time you park? Here's how to narrow down the fuse, contacts, and clock movement...
W201 clock in the instrument cluster stopped? R...
The clock in the W201 instrument cluster has stopped, runs slow, or loses the time every time you park? Here's how to narrow down the fuse, contacts, and clock movement...
W124/W201 ASD not locking? Control unit 0055455932
The rear-axle lock no longer engages when pulling away: here's how to check the ASD control unit 005 545 59 32 and find out which suffix number belongs to your...
W124/W201 ASD not locking? Control unit 0055455932
The rear-axle lock no longer engages when pulling away: here's how to check the ASD control unit 005 545 59 32 and find out which suffix number belongs to your...
W124 A/C cuts out at full throttle? Check the k...
The A/C in the six-cylinder W124 cuts out on kickdown and doesn't come back? Here's how to distinguish relay A0035455605 from the base control and refrigerant circuit – with test...
W124 A/C cuts out at full throttle? Check the k...
The A/C in the six-cylinder W124 cuts out on kickdown and doesn't come back? Here's how to distinguish relay A0035455605 from the base control and refrigerant circuit – with test...
W124 automatic not shifting? HGS control unit 3...
The automatic five-speed transmission in the W124 300 24V stays in one gear, shifts hard, or ignores the kickdown? Here's how to cleanly tell the transmission and transmission control unit...
W124 automatic not shifting? HGS control unit 3...
The automatic five-speed transmission in the W124 300 24V stays in one gear, shifts hard, or ignores the kickdown? Here's how to cleanly tell the transmission and transmission control unit...
W124/W201 idle surging? Check the 7-pin OVP rel...
A surging idle, a persistent ABS light and poor starting on the W124, W201 or W126 are often down to the overvoltage protection relay. Here's how to test it yourself...
W124/W201 idle surging? Check the 7-pin OVP rel...
A surging idle, a persistent ABS light and poor starting on the W124, W201 or W126 are often down to the overvoltage protection relay. Here's how to test it yourself...
W140 USA turn signals not working? Check combin...
Turn signals and hazard warning lights both not working on the US-spec W140? Then the trail leads to combination relay N10 with part number A1408202626 – symptoms, diagnostic order, fitment...
W140 USA turn signals not working? Check combin...
Turn signals and hazard warning lights both not working on the US-spec W140? Then the trail leads to combination relay N10 with part number A1408202626 – symptoms, diagnostic order, fitment...
W123/R107 M110 no oil pressure? Check the inter...
If oil pressure drops on the M110 six-cylinder and the ignition timing drifts, a worn intermediate shaft in the oil pump and ignition distributor drive is often behind it. Here's...
W123/R107 M110 no oil pressure? Check the inter...
If oil pressure drops on the M110 six-cylinder and the ignition timing drifts, a worn intermediate shaft in the oil pump and ignition distributor drive is often behind it. Here's...
Rear window heater not working? Switch W123, W1...
The rear window stays fogged and the heater can no longer be switched on? On the W123, W124, W126, W201 and R107, the cause is often the rocker switch 0008206010...
Rear window heater not working? Switch W123, W1...
The rear window stays fogged and the heater can no longer be switched on? On the W123, W124, W126, W201 and R107, the cause is often the rocker switch 0008206010...