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Universal parts – spare parts that are not vehicle-specific
The universal parts catalogue enables you to search for lighting and electrics/electronics products that are not vehicle-specific.
Universal parts catalogueVehicle-specific spare parts
Our online catalogue is designed to make it easier for you to search for spare parts. This means that you can, for example, enter the relevant vehicle by using our comprehensive manufacturer list, the type designation or the engine code.
Vehicle-specific spare partsBrief information as PDF download
Information on various products in one database.
Brief informationDownloads on individual topics
Further technical information
Basic Knowledge
Exhaust gas recirculation – EGR valve
Everything about the exhaust gas recirculation system: causes of defective EGR valves, their inspection and replacement - knowledge for the vehicle workshop.
Reading Time: 12 minutes
Basic Knowledge
Rain sensor & headlight sensor testing
Diagnostic and repair instructions for the rain sensor - including video instructions for removing and installing the sensor.
Reading Time: 10 minutes
Basic Knowledge
NOx-Sensor - Mercedes Benz
If a fault is diagnosed in the NOx sensor when troubleshooting an exhaust gas purification system, this can present a small challenge for a workshop.
Reading Time: 7 minutes

Basic Knowledge
Starter damage assessment
Faulty starter motor? Discover typical causes such as overloading or misfiring and how to repair damage effectively.
Reading Time: 1 minute

Basic Knowledge
Alternator damage assessment
How to diagnose damage to the alternator: from corrosion and short circuits to bearing damage.
Reading Time: 1 minute

Basic Knowledge
Service work on the charging system
Step-by-step instructions for servicing the charging system, including visual inspection and signal testing on the controller.
Reading Time: 6 minutes

Basic Knowledge
Keyless Go & Keyless Entry system
Introduction to the Keyless Go system - from function and possible faults to diagnostics, ideal for vehicle workshops.
Reading Time: 12 minutes
Technical product
Installation of stop light switch with automatic adjuster
Here you can find step-by-step instructions for the replacing of stop light switches with automatic adjuster on Audi, Porsche, Seat, Skoda, VW.
Reading Time: 2 minutes
Technical product
Changing the alternator freewheel clutch - the procedure
We will show you very concisely the recommended procedure if you need to replace the alternator freewheel clutch. With pictorial illustrations.
Reading Time: 1 minute
Technical product
Function of the alternator freewheel clutch explained
We explain the function and the structure of the alternator freewheel clutch and provide you with an insight into the advantages of the overrunning alternator pulley on the alternator
Reading Time: 1 minute

