Used Mercedes-Benz C Class Central Locking

All used Mercedes-Benz C Class Central Locking listed on are tested, original (OEM) manufacturer parts and come with a 14 day money back guarantee. listed used car parts for Mercedes-Benz C Class are from premium breaker yards from across the UK, saving you up to 80% compared to main dealer prices.

About Central Locking

What is the central locking system/what does it do?

Central Locking systems are common or at least an option on most modern cars. It enables remote locking or unlocking of all doors from a key fob or from switches inside of the vehicle. This operation also functions with the insertion and turning of the key in the driver's and the front passenger door.

Getting into the details of the central locking system

On earlier makes and models that offered central locking the system was powered by a vacuum system. In general, modern makes and models are operated through the use of  small electric motors and gears in an actuator, one of which is positioned inside each door cavity below the door lock lever pull rod and adjacent to the rear door closure on the hatchback or estate. The central locking system can be part  of the security system controlled by the ECU (electronic control unit) which is part of the vehicle's computer system. Apart from controlling the central locking it may also control ignition lock, steering lock, alarm and immobilizer. Some ECUs also control automatic window closure, fuel flap locks and car vehicle tracking.

The system can consist of a separate control unit which picks up a radio signal pulse code from a preset key fob. Wired to the control unit are the actuators which run when the signal is received and push up the lock rod and open the lock. When the lock button on the fob is pressed the small electric motors run in the opposite direction and the actuator pulls the lock rod down. On some models the fob and control unit are programed and wired to control interior lights to switch on and remain on until the engine is started. Sometimes using the central locking can also activate or deactivate the alarm system.

The control of central locking is usually a two way switch on the center console or within the facia of the front doors, to open or close the locks on all the doors simultaneously . On some makes and models when locking the doors, any windows that are open will also close. There are also individual switches on each door that will operate that particular door.

What if something goes wrong with the central locking system?

Spares for the electric central locking system include actuators, control units, switches and key fobs. On older air vacuum systems they can include vacuum pumps and vacuum actuators.

Mercedes-Benz C Class trivia

  • For every five Mercedes sold, one in a C Class. That means it's sold well over 10 million units since its initial launch date.
  • The current C-Class is about the same size as the original E-Class, which is weird because the C-Class is now categorised as a midsize car. That means it's larger and more spacious than the BMW 3-Series and the Audi A4!
  • The Mercedes-Benz C Class comes with two different types of turbo engines. The C300 turbo-4 is 241 horsepower, while the C450 AMG comes with a very impressive 362 horsepower.
  • Despite its popularity and long production run, the C Class didn't get a topless version until 2016. The W205 Cabriolet was the first dedicated C Class convertible (although there had been the coupe convertible CLK, this was styled far more like an E-Class and is now considered to be part of that range).
  • When the C Class was first launched, it was called the “Baby Benz” due to its position at the bottom of the list of Mercedes passenger vehicles. The C Class remained the “entry-level” Mercedes until the introduction of the A-Class.