Bosch 16125 oxygen sensor for the 2001-2004 Mercedes-Benz SLK230 4-cylinder 2.3L and other vehicles measures oxygen in the exhaust and sends air-fuel-ratio feedback to the ECU. This is a downstream, narrow-band switching-type sensor.
- Integrated heater element brings the sensor to operating temperature in under 10 seconds
- Metal housing with TSP coating resists vibration, corrosion and contamination
- Withstands exhaust gas temperatures up to 1,880°F
- Fast signal to the ECU for quick closed-loop control and lower emissions
Quick facts
- Part: Bosch 16125 oxygen sensor
- Fits: 2001-2004 Mercedes-Benz SLK230 4-cylinder 2.3L and other vehicles
- Position: Downstream
- Material: Metal housing
- Condition: New
A worn oxygen sensor can show up as a check engine light, rough running or poorer fuel economy. Before you replace the sensor, rule out wiring damage, a loose connector and an exhaust leak near it, since those can set similar codes.
Fits
It fits the 2001-2004 Mercedes-Benz SLK230 4-cylinder 2.3L, the 2001-2002 Mercedes-Benz S600 V12 5.8L and the 2001-2002 Mercedes-Benz CL600 V12 5.8L.
Specifications
Fit and size
- Position: Downstream
- Thread size: M18 - 1.5
- Hex size: 22 mm
- Length, sealing surface to end of connector: 15 in
Build and materials
- Type: Narrow-band, heated
- Housing material: Metal
- Condition: New
- Warranty: Bosch 1-year, unlimited-mileage warranty for non-commercial passenger cars and light trucks
In the box
One oxygen sensor with its wiring harness; a mounting bracket is not included. This listing is one sensor: the 2001-2004 Mercedes-Benz SLK230 4-cylinder 2.3L takes one, the 2001-2002 Mercedes-Benz CL600 V12 5.8L takes two, and the 2001 Mercedes-Benz S600 V12 5.8L takes two while the 2002 model takes four.
Installation notes
- Conductive anti-seize is pre-applied to the threads.
- Direct-fit connectors are built for quick installation.
Frequently Asked Questions
Is this the Mercedes SLK230 oxygen sensor for 2001-2004 cars with the 4-cylinder 2.3L?
Yes. Bosch 16125 fits the 2001-2004 Mercedes-Benz SLK230 4-cylinder 2.3L, and it is a downstream sensor.
Does Bosch 16125 also fit the 2001-2002 Mercedes-Benz S600 V12 5.8L or the CL600 V12 5.8L?
Yes. Bosch 16125 fits the 2001-2002 Mercedes-Benz S600 V12 5.8L and the 2001-2002 Mercedes-Benz CL600 V12 5.8L, with the quantities given in the In the box section.
Is this Bosch O2 sensor narrow-band and heated?
Yes. Bosch 16125 is a narrow-band heated sensor with an M18 - 1.5 thread and a 22 mm hex.
Does this Bosch premium oxygen sensor come with its wiring harness?
Yes, the wiring harness is included with this downstream sensor. A mounting bracket is not included.
Does this downstream oxygen sensor arrive with anti-seize on the threads?
Yes. The threads have conductive anti-seize pre-applied, and the connectors are direct-fit.
