WIS 20.10 Coolant Pump, Coolant Thermostat: Difference between revisions
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==Description - Coolant Thermostat== | |||
TBA | |||
==Issues - Coolant Thermostat== | |||
* New thermostats only seem to last about 5 years and then start malfunctioning. | |||
* Thermostats commonly gets fatigued with time and no longer maintain the engine at the correct operating temperature. | |||
* A fatigued thermostat also takes much longer for the vehicle to warm up from cold resulting in unnecessary engine wear and higher fuel consumption. | |||
* Thermostats often remain permanently stuck open. | |||
* Some thermostats remain stuck closed, evidenced by an overheating engine. | |||
==Part Number - Coolant Thermostat== | |||
* Reference: WIS WDB220175 (S500L) and engine M113 960 | * Reference: WIS WDB220175 (S500L) and engine M113 960 | ||
* A 112 203 02 75 (Replaces A 112 200 00 15) | * A 112 203 02 75 (Replaces A 112 200 00 15) | ||
==Specification - Coolant Thermostat== | |||
The engine coolant thermostat specified opening temperature is 87°C. | |||
==Comparison of Old and New Thermostats - Coolant Thermostat== | |||
http://w220.ee/images/2/26/W220_Comparison_of_Old_and_New_Thermostats.JPG | |||
http:// | ==DIY Procedures - Coolant Thermostat== | ||
===DIY Mesurements - Coolant Thermostat=== | |||
Version 01 posted 2012-04-27: http://www.benzworld.org/forums/w220-s-class/1649584-s500-new-thermostat-compared-original.html | |||
== DIY== | ===DIY Replace - Coolant Thermostat=== | ||
http://www.benzworld.org/forums/w220-s-class/2296553-v12tt-water-pump-diy.html | http://www.benzworld.org/forums/w220-s-class/2296553-v12tt-water-pump-diy.html | ||
Revision as of 05:08, 15 March 2015
Description - Coolant Thermostat
TBA
Issues - Coolant Thermostat
- New thermostats only seem to last about 5 years and then start malfunctioning.
- Thermostats commonly gets fatigued with time and no longer maintain the engine at the correct operating temperature.
- A fatigued thermostat also takes much longer for the vehicle to warm up from cold resulting in unnecessary engine wear and higher fuel consumption.
- Thermostats often remain permanently stuck open.
- Some thermostats remain stuck closed, evidenced by an overheating engine.
Part Number - Coolant Thermostat
- Reference: WIS WDB220175 (S500L) and engine M113 960
- A 112 203 02 75 (Replaces A 112 200 00 15)
Specification - Coolant Thermostat
The engine coolant thermostat specified opening temperature is 87°C.
Comparison of Old and New Thermostats - Coolant Thermostat
DIY Procedures - Coolant Thermostat
DIY Mesurements - Coolant Thermostat
Version 01 posted 2012-04-27: http://www.benzworld.org/forums/w220-s-class/1649584-s500-new-thermostat-compared-original.html
DIY Replace - Coolant Thermostat
http://www.benzworld.org/forums/w220-s-class/2296553-v12tt-water-pump-diy.html