Mercedes-Benz C-Class: On-board diagnostics interface - Operating safety - Introduction - Mercedes-Benz C-Class Owners ManualMercedes-Benz C-Class: On-board diagnostics interface

If you connect equipment to the on-board diagnostics interface, it can affect the operation of the vehicle systems. This can impair the operating safety of your vehicle while driving. There is a risk of accident.
Do not connect any equipment to the onboard diagnostics interface.

Loose equipment or equipment cables which are connected to the on-board diagnostics interface can obstruct the area around the pedals. The equipment or the cables could get between the pedals in the event of sudden braking or acceleration. You may then no longer be able to brake, operate the clutch or accelerate as intended. There is a risk of accident.
Do not attach any equipment or cables in the driver footwell.

Connecting equipment to the on-board diagnostics interface can lead to emissions monitoring information being reset. This may lead to the vehicle failing to meet the requirements at the next special emissions test or main inspection.

If the engine is switched off and equipment on the on-board diagnostic interface is used, the starter battery may discharge.

The on-board diagnostics interface is only intended for the connection of diagnostic equipment at a qualified specialist workshop.

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