How to carry out replacement: Lambda Sensor 230 2.3 Kompressor (170.447) Mercedes SLK R170
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Change Mercedes SLK R170 230 2.3 (170.449) Lambda Sensor yourself – manuals and video tutorials

How to change lambda sensor on MERCEDES-BENZ SLK (R170) – replacement guide

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When to replace the Lambda Sensor on your MERCEDES-BENZ SLK
Recommended replacement interval for the part category Lambda sensor : 100000 km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ SLK (R170) 200 Kompressor (170.444), MERCEDES-BENZ SLK (R170) 230 Kompressor (170.449), MERCEDES-BENZ SLK (R170) 320 (170.465), MERCEDES-BENZ SLK (R170) 32 AMG Kompressor (170.466) … View more

The steps may slightly vary depending on the car design.

This video shows the replacement procedure of a similar car part on another vehicle

All the parts you need to replace – Lambda Sensor for SLK (R170) and other MERCEDES-BENZ models
How to change Lambda sensor on Mercedes SLK R170 230 2.3 Kompressor (170.447) – step-by-step instructions for straightforward car repair Lambda sensor
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Lambda sensor for SLK (R170) Petrol (163 hp)
Simple DIY car repair steps – Replacing Lambda sensor on SLK (R170)
Lambda sensor for SLK (R170) Petrol (197 hp)
Easy tricks to help you to replace Lambda sensor on SLK (R170)
Lambda sensor for SLK (R170) Petrol (218 hp)
Lambda sensor removal & installation, incredibly easy steps for SLK (R170)
Lambda sensor for SLK (R170) Petrol (354 hp)
Tools
Replacement: lambda sensor – MERCEDES-BENZ SLK (R170). Tools you need:
Wire brush
WD-40 spray
Electronic spray
High-temperature ceramic grease
Torque wrench
Combination spanner #22
Drive socket # 8
22-mm oxygen sensor socket
Ratchet wrench
Thread tap
Fender cover
Buy tools
Replacement: lambda sensor – MERCEDES-BENZ SLK (R170). AUTODOC experts recommend:
  • After replacing the oxygen sensor, clear the trouble code from the electronic control unit and let the ECU adapt itself to the new sensor.
  • All work should be done with the engine stopped.
Replacement: lambda sensor – MERCEDES-BENZ SLK (R170). Recommended sequence of steps:
  1. Step 1
    Before getting down to work, start the engine and let it warm up to operating temperature.
    Step 2
    Open the bonnet.
    Step 3
    Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
    Step 4
    Shut off the engine.
    Step 5
    Lift the car using a jack or place it over an inspection pit.
    Step 6
    How to change Lambda Sensor on Mercedes SLK R170 1996 - free PDF and video manuals
    Undo the fasteners of the oil pan lower cover. Use a drive socket #8. Use a ratchet wrench.
  2. Step 7
    How to replace MERCEDES-BENZ SLK (R170) 230 2.3 Kompressor (170.447) 1997 Lambda Sensor - step-by-step manuals and video guides
    Remove the oil pan cover.
  3. Step 8
    Mercedes SLK R170 200 2.0 Kompressor (170.444) 1998 Lambda Sensor replacement: free workshop manuals
    Detach the oxygen sensor connector.
  4. Step 9
    Changing Lambda Sensor on MERCEDES-BENZ SLK (R170) 230 2.3 Kompressor (170.449) 1999 by yourself
    Clean the oxygen sensor fastener. Use a wire brush. Use WD-40 spray.
  5. Step 10
    How to remove MERCEDES-BENZ SLK 320 3.2 (170.465) 2000 Lambda Sensor - online easy-to-follow instructions
    Unscrew the oxygen sensor fastener. Use a 22-mm oxygen sensor socket. Use a ratchet wrench.
  6. Step 11
    How to replace Lambda Sensor on MERCEDES-BENZ SLK (R170) 2001: download PDF manuals and video instructions
    Remove the oxygen sensor.
  7. Step 12
    How hard is it to do yourself: Lambda Sensor replacement on Mercedes SLK R170 32 AMG 3.2 Kompressor (170.466) 2002 - download illustrated guide
    Cut the thread for the new oxygen sensor. Use a thread tap. Use a ratchet wrench.
  8. Step 13
    Need to know how to renew Lambda Sensor on MERCEDES-BENZ SLK 2003? This free workshop manual will help you to do it yourself
    Treat the oxygen sensor. Use high-temperature ceramic grease.
  9. Step 14
    Changing of Lambda Sensor on Mercedes SLK R170 2004 won't be an issue if you follow this illustrated step-by-step guide
    Install the new oxygen sensor.
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