What does code P0353 mean on a Mercedes-Benz and is it safe to drive?
P0353: Ignition Coil C Primary/Secondary Circuit Malfunction. Here's what it means on your Mercedes-Benz, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
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What this code means
Fault in ignition coil C circuit (cylinder 3). Identical to P0351/P0352 in diagnosis and repair, but affects cylinder 3. Common on 4- and 6-cylinder engines with coil-on-plug systems.
Common causes for your Mercedes-Benz
- Failed ignition coil on cylinder 3
- Worn or fouled spark plug on cylinder 3
- Damaged wiring or corrosion at coil connector
Symptoms
- Flashing or steady Check Engine Light
- Misfire felt in the cabin at idle or under load
- Poor acceleration
Typical fixes
- Replace ignition coil for cylinder 3
- Replace spark plug on cylinder 3
- Check coil connector and wiring
Repair cost range
For a Mercedes-Benz, repairs for P0353 often fall between $80 and $300, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.