P0141 on a Volkswagen: Causes, Fixes & Repair Cost

🟢 Low severity · drivable

The car still drives normally because the heater only speeds up sensor warm-up after a cold start.

What P0141 means on a Volkswagen

On a Volkswagen, P0141 means the heater inside the bank 1 rear oxygen sensor, the one after the catalytic converter, has failed. VW uses the rear sensor mainly to watch converter performance, so the engine still runs and drives fine when this code appears.

Is P0141 common on Volkswagens?

P0141 is common on higher-mileage Jettas, Golfs, and Passats as the sensor heater element wears out. VWs use Bosch or NTK oxygen sensors, and swapping the rear sensor is a straightforward job on most models.

Commonly reported on: Jetta, Golf, Passat, Tiguan.

Symptoms

Check engine light is on
May fail an emissions test
Slightly reduced fuel economy
No change in how the car drives

Common causes

most common: Failed heater element inside the rear sensor
common: Blown oxygen sensor heater fuse
common: Damaged wiring or connector near the sensor
less common: Corrosion in the sensor connector

How to fix it

Fix	DIY?	Typical cost
Test the heater circuit with a multimeter before replacing the sensor	Yes	$10–60
Replace the bank 1 rear oxygen sensor	Yes	$80–230
Repair damaged wiring or the connector	Yes	$30–150
Have a shop do the sensor replacement with labor	Mechanic	$150–380