Mercedes-Benz E-class W123 - Repair manual and operation

8.6. System of automatic control of provision of a body

Some models of the car are equipped with system of automatic control of provision of a body which by means of a hydraulic system regulates height of the course of a back suspension bracket. The system has two telescopic racks which are established instead of back shock-absorbers and each of which is connected to the separate accumulator of pressure. Liquid under pressure moves the pump installed on the engine, and height of the course of a back suspension bracket is regulated by the proofreader connected with a bar of the stabilizer of cross stability. Each accumulator of pressure has the gas chamber supporting necessary pressure at suspension bracket deviations.

On engines of model M 110 the hydraulic pump is put in action from the forward end of the camshaft of final valves, and on engines of model M 123 — from the forward end of an intermediate shaft. In case of malfunction of system it has to be checked by the representative of Mercedes since the special equipment for this purpose is required.

System of automatic control of provision of a body

1 — the hydraulic pump 2 — a tank 3 — the proofreader of system 4 — pressure accumulator 5 — a depreciation rack 10 — the stabilizer of cross stability	And — the soaking-up pipeline B1 — the delivery pipeline to the proofreader B2 — the delivery pipeline from the proofreader to pressure accumulator VZ — the delivery pipeline from pressure accumulator to a depreciation rack With — the drain pipeline

System of automatic control of provision of a body on versatile persons

1 — the hydraulic pump 2 — a tank 3 — the proofreader 4 — pressure accumulator 5 — a depreciation rack 6 — the lever of the stabilizer of cross stability 7 — connecting draft 10 — the torsion 18 — a spring of a back suspension bracket 19 — the diagonal lever of a suspension bracket	26 — a beam of a support of the back bridge And — the soaking-up pipeline from a tank to a hydraulic pump B1 — the delivery pipeline from a hydraulic pump to the proofreader B2 — the delivery pipeline from the proofreader to pressure accumulator VZ — the delivery pipeline from pressure accumulator to a depreciation rack With — the drain pipeline from the proofreader to a tank

System of automatic control of provision of a body on sedans and a compartment

1 — the hydraulic pump 2 — a tank 3 — the proofreader 4 — pressure accumulator 5 — a depreciation rack 6 — the lever of the stabilizer of cross stability 7 — connecting draft 10 — the torsion 18 — a spring of a back suspension bracket

19 — the diagonal lever of a suspension bracket 26 — a beam of a support of the back bridge And — the soaking-up pipeline from a tank to a hydraulic pump B1 — the delivery pipeline from a hydraulic pump to the proofreader B2 — the delivery pipeline from the proofreader to pressure accumulator VZ — the delivery pipeline from pressure accumulator to a depreciation rack With — the drain pipeline from the proofreader to a tank

PERFORMANCE ORDER

For gas station of system fill in liquid in a tank to a mark of the maximum level, and then start the engine on high turns of idling approximately for 1 min. At the same time a back part of the car has to be loaded weighing two passengers on a back seat or freight of the same weight in a luggage carrier. Stop the engine and add liquid in a tank. At completely loaded car and the working engine its level will fall to the lower mark. Removal and installation of details of system do not present special difficulties, however any adjustment of height of the course has to be made by the representative of Mercedes.