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.
2000 Mercedes Benz C43FACTORY OEM SERVICE PROCEDURE
Opening Trunk Lid With Remote Transmitter
WARNING: This page is about a different car, the 1996 Mercedes-Benz C280 and 1996 Mercedes-Benz C220. However, it is still accessible from the selected car via links, so may be relevant.
Ensure trunk lock key slot is not at 90 degree position. Lock vehicle with remote transmitter. Press remote transmitter button twice within one second. If trunk lid does not open, check the following and repair as necessary:
- Perform TEST 1 through TEST 4. See REMOTE CONTROL LOCKING (RCL) under SYSTEM TESTS.
- Perform TEST 6 and TEST 7. See REMOTE CONTROL LOCKING (RCL) under SYSTEM TESTS.
- Perform TEST 13 through TEST 14. See REMOTE CONTROL LOCKING (RCL) under SYSTEM TESTS.
- Repair pneumatic system fault. See WIRING DIAGRAMS in the DOOR LOCKS - PNEUMATIC & POWER article.
- Trunk lid mechanical fault.
Factory Service Tools
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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.