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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
NOx sensor - troubleshooting and repair instructions
Everything about the NOx sensor: how it works, typical causes of failure, symptoms and fault diagnosis with the control unit.
Reading Time: 8 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
Replacing the horn - Instructions
Step-by-step instructions for replacing the horn on various models such as the Audi TT/RS and Grand Cherokee.
Reading Time: 5 minutes
Basic Knowledge
Checking the alternator regulator
Find out how to check the multifunction regulator, measure the generator voltage and ensure that the regulator is functioning correctly.
Reading Time: 4 minutes

Basic Knowledge
Starter damage assessment
Starter faulty? Spot typical causes such as overloading or misfiring and find out how to repair damage effectively.
Reading Time: 1 minute

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

Basic Knowledge
Ignition coil – checking, measuring, faults
Recognize symptoms of a defective ignition coil and get to know ignition coil types - with instructions for troubleshooting and testing.
Reading Time: 14 minutes

Basic Knowledge
Park Distance Control (PDC): a parking aid based on ultrasound
Learn all about the function and maintenance of ultrasonic parking aids (PDC), including repair tips.
Reading Time: 5 minutes

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
Lane change assist
Learn all about the lane change assistant - diagnostic and repair instructions, supplemented by a clear video.
Reading Time: 13 minutes

