Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Esp Sensor Unit
The transverse acceleration sensor -G200-, rotation rate sensor -G202- and longitudinal acceleration sensor -G251- are installed in a housing under the right front seat.
After replacing ESP sensor unit -G419-, a transverse acceleration sensor -G200- basic setting must be performed.
Strong vibrations (for example falls, impacts) can destroy the ESP sensor unit AND must then no longer be used.
Removing
-- Remove the right front seat with the seat frame. Refer to Removal and Installation .
-- Remove sill panel trim. Refer to Removal and Installation .
-- Lift carpet and lay it aside.
-- Remove connector station -1-.
-- Raise floor covering.
-- Disconnect connector -1- from ESP sensor unit -G419-.
-- Remove the two nuts -arrows-.
-- Remove ESP sensor unit.
Installing
-- Installation is performed in the reverse order of removal.
When installing ESP sensor unit, be sure it is properly seated on the bracket and is free of tension.
Do not use the securing nuts to forcibly position the ESP sensor unit.
-- Tighten the nuts to 9 Nm.
-- Perform transverse acceleration sensor -G200- basic setting.
-VAS 5051-, connecting and selecting functions Vehicle Diagnostic, Test and Information System VAS 5051, CONNECTING AND SELECTION FUNCTIONS .
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.