Why is my Mercedes key turning but not starting?

This is usually caused by a failure in the ELV (Electronic Steering Lock) motor on W204 C-Class and W212 E-Class models.

How much does Mercedes steering lock repair cost?

Our repair service starts from £250 (depending on vehicle). This is significantly cheaper than the £1000+ dealer replacement.

Mercedes Key, EIS & ELV Repair Hayes | W204 W212 Sprinter W906

Mercedes ELV / EZS Steering Lock Repair – Hayes & West London

Is your Mercedes key turning but the dash lights won’t come on? You likely have a failed Electronic Steering Lock (ELV/ESL) or Electronic Ignition Switch (EZS/EIS).

At Auto Electrician Hayes, we fix this common Mercedes fault while you wait. Don't pay the dealer £1,500+ for a new steering column. We can repair your existing system or install a permanent emulator solution for a fraction of the price.

Common Symptoms of ELV/EIS Failure

If you own a C-Class or E-Class, you might experience:

Key turns in the ignition, but the dashboard stays dark.
Steering wheel remains locked (or unlocked) and won't release.
No "Click" sound when inserting the key.
Car won't start despite a good battery.
Remote locking works, but the ignition does not.

The Models We Fix (Common Failures)

We specialize in the "Chassis 204/212" platform, which is notorious for this fault:

Mercedes C-Class: W204, S204, C207 (2007–2014)
Mercedes E-Class: W212, S212 (2009–2016)
Mercedes GLK: X204

Our Repair Solution: Cheaper & Better than Dealer

The main dealer will try to sell you a completely new steering column and order a "Green Key" from Germany, taking 7-10 days.

We offer two faster solutions:

ESL Motor Repair: We replace the failed internal motor in your steering lock with a high-quality component.
Emulator Solution (Recommended): We remove the faulty mechanical lock and replace it with a digital Emulator. This "tricks" the car into thinking the lock is working.
- Benefit: The steering lock can never fail again. It is a permanent fix.

How It Works

Option A (Bring the Car): We remove the unit, fix it, and reinstall it. (Approx 2-3 hours).
Option B (Bring the Parts): If you are a mechanic or confident DIYer, bring us the Key, EIS (Ignition Switch), and ELV (Steering Lock). We will repair them on the bench while you wait.

Ready to Start Your Mercedes?

Stop stressing. Call Auto Electrician Hayes today. Location: 182A Shakespeare Avenue, Hayes, UB4 9AG Call for Quote: +44 745 003 8611