Codes › MERCEDES-BENZ › OPT › ET4
MERCEDES-BENZ • OPT • ET4 Category: Driver AssistanceActive distance assist DISTRONIC
DISTRONIC.
Adaptive cruise control with distance regulation.
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Related OPT codes
- OPT JW8 — Traffic jam assist
- OPT JW5 — Lane keeping assist
- OPT JS1 — 360-degree camera
- OPT IG5 — Active steering assist
- OPT ID2 — Traffic sign recognition
- OPT IB6 — Active lane keeping assist
Frequently Asked Questions
What does OPT code ET4 mean?
OPT code ET4 is a factory equipment code used by MERCEDES-BENZ to describe a specific vehicle configuration or component.
Where can I find OPT code ET4 on my car?
This code is typically found in the vehicle’s factory build data, service documentation, or can be confirmed by decoding the VIN.
Does OPT code ET4 affect maintenance or parts?
Yes. Factory codes determine correct parts selection, software compatibility, and service procedures for your exact vehicle configuration.
How can I verify OPT code ET4 for my vehicle?
The most reliable way is to order a complete Vehicle Data Sheet decoded directly from your vehicle’s VIN.