TOPRAN 638 558 Exhaust Gas Temperature Sensor

Compatible with MERCEDES-BENZ M-CLASS (W166) , MERCEDES-BENZ GLE (W166) ,
Measures exhaust gas temperature to optimize engine performance and emissions. Ensures accurate readings for your vehicle's exhaust system.
30.56 EUR
inc. VAT 21%
In stock 2
Delivery 1 day (23.03.2026)
PN 638558
Make TOPRAN

The TOPRAN 638 558 is a high-quality sensor designed to accurately measure the temperature of exhaust gases. This critical data allows your vehicle's engine control unit (ECU) to make real-time adjustments, optimizing fuel combustion and minimizing harmful emissions. Proper functioning of the exhaust gas temperature sensor is essential for maintaining engine efficiency and preventing potential damage. It plays a key role in the overall health of your exhaust system and contributes to a cleaner, more efficient drive. This TOPRAN sensor is built to meet stringent quality standards for reliable performance.

  • Direct fit for specified vehicle applications
  • Monitors exhaust gas temperature accurately
  • Helps optimize engine performance and fuel economy
  • Contributes to reduced emissions
  • Durable construction for long-lasting service
  • Ensures proper functioning of the exhaust system
  • Replaces original equipment sensor
Number of pin contacts
2
Mounting type
screwed
Wrench size
17
Thread pitch [mm]
+15
Thread size
M 14
Sensor type
NTC sensor
Cable length [mm]
470
Additional article/Additional info 2
with wire
Additional article/Additional info 2
with a heat-resistant tube
Screw head/nut profile
Hex key
Form
Curved
  • MERCEDES-BENZ
    • M-CLASS (W166)
      • ML 250 CDI / BlueTEC 4-matic (166.004, 166.003) (150kW/204PS)
    • GLE (W166)
      • 250 d (166.006) (150kW/204PS)
      • 250 d 4-matic (166.004) (150kW/204PS)
      • 350 d 4-matic (166.024) (190kW/258PS)
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