Back to 2002 Mercedes-Benz SL
Help

2002 MERCEDES-BENZ SL

3.0L I6•RWD•AUTOMATIC•gas
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor564Torque3477Fluid7DTC698Battery1Maintenance0Recalls0
P0057low severityPowertrain

HO2S Heater Control Circuit Low Bank 2 Sensor 2

on 2002 Mercedes-Benz SL 3.0L I6 · RWD

What this code means

Low voltage in the Bank 2 Sensor 2 O2 heater circuit.

Symptoms

  • Check Engine Light

Common causes

  • Short to ground
  • Faulty sensor

Diagnostic steps

  1. Test voltage
  2. Check for shorts

Repair notes

Repair or replace.

Other Powertrain codes on this vehicle

⚠ STILL BEHIND THE PAYWALL
The 2002 Mercedes-Benz SL repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Mercedes-Benz SL — $99 →
Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →