Mercedes S-Class W-140

1991-1999 of release

Repair and car operation

Mercedes S-Class
+ Mercedes-Benz Cars of a class S (W-140)
+ Operation manual
+ Routine maintenance
+ Engine
- Systems of cooling, heating
   + System of cooling of the engine
   + Systems of ventilation, heating and air conditioning
+ Power supply system and release
+ engine Electric equipment
+ gear shifting Box
+ Avtomaticheckaya transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment



General parameters

Separate characteristics are provided also in the text of Head and in case of obligation of their performance are allocated with a bold print.


Thermosiphon with the lopastny water pump. Thermostatic adjustment. With a separate broad tank. The fan with an electric drive, joins and switched off by a two-level thermoswitch

Antifreeze type MB No. Q1 03 0002
Volume of system, l See. Head Routine maintenance

Composition of cooling liquid:

Share of antifreeze in cooling liquid for ensuring frost resistance
to - 37°С 50 %  
to - 45°С 55 %  

Pressure in system About 1.2 bar (the exact size is specified on a cover of a broad tank). The cover should maintain pressure within two minutes.


Valve stroke, mm
not less than 7

Temperatures of activation of the valve

Petrol engines
Opening beginning
78-82 °
Complete opening
94 °
Diesel engines
Data are not provided
Fan thermoswitch
Inclusion/switching off of the 1st step
Inclusion/switching off of the 2nd step

Air conditioner

Conditioner coolant

R134a (do not use R12)


With back To/in
on VIN A1 128373
with VIN A1 128374
Without back To/in
on VIN 1A 128373
with VIN 1A 128374

Refrigerator oil

Volume, cm3

Efforts of a tightening of carving connections, Nanometer

The moments of an inhaling of fixture are given also in the text of Head and on some иллюстрациях*.

* Allocated in the text a bold print the moments of an inhaling are subject to exact observance; the efforts not allocated with a bold print are given only roughly