Mercedes C-Class

W203 since 2000 of release

Repair and car operation

Dismantling and assembly of multidisk brake В2

Dismantling and assembly of multidisk brake В2


14а — the External support of brake В2 or the B3 piston 14b-d — Sealing rings of brake В3 27 — the Piston of brake В2 28 — the Directing ring of the piston 28a-b — Sealing rings on a directing ring of the piston 29, 134b — Disk springs	30 — the Spring plate 31, 134а — Lock rings 32 — Directing the piston of brake В2 and В3 32а — the Sealing ring 134 — the Block of disks

Dismantling and assembly of multidisk brake В2


31 — the Lock ring	074 — the Stripper

Dismantling and assembly of multidisk brake В2


27 — the Piston 28 — the Directing ring of the piston	137 — the Valve

Dismantling and assembly of multidisk brake В2


And — the Oil channel of the B3 piston In — the Oil channel of the B2 piston from a reverse side	With — the Oil channel of coupling К3 D — the Oil channel of the B2 piston from gear shifting

Assembly directing the piston and an external support of multidisk brake В2


2 — the transmission Case 14а — the External support of brake В2, (B3 piston)	32 — Directing the piston

Cut of brake В1


14а — the External support of brake В2 27 — the B2 Piston 134а — the External disk (thickness of 6.5 mm) 134b — the External disk (thickness of 1.8 mm)	134с — the External disk (thickness of 1.8 mm) 134d — Frictional disks 134е — the Disk spring 144а — the Lock ring L — the Gap

Dismantling

PERFORMANCE ORDER

1. Remove a lock ring (134а).

Parameters

Gap in многодисковмтормозе В1, mm
Disk 2

1,90-2,30

Disk 3

2,00-2,40

Disk 4

3,00-3,40

2. Remove the block of disks of brake В2 (134) and a disk spring (134b) from an external support of brake В2.
3. Establish a stripper (074) on a disk spring (29) and compress it until the groove for a lock ring will not be released.
4. Remove a lock ring (31).
5. Remove a spring plate (30) and a disk spring (29).
6. Disconnect directing ring (28) pistons and the piston of brake В2 (27) from the B3 piston (14а), having submitted the compressed air to an opening of D (address to an accompanying illustration).
7. Press directing ring (28) from the B2 piston (27).
8. Remove directing (32) from the B3 piston (14а), having submitted the compressed air to an opening And.

Assembly

PERFORMANCE ORDER

1. Establish directing (32) and the B3 piston (14а) in the correct situation. For this purpose, insert directing (32) into the case of transmission (2) and tighten. Press an external support of brake В2 (14а) against the stop in directing (32). Bore on shlitsa or cut on an external support of brake В2 (14а) should be directed down (arrow).
2. Insert the piston of brake В2 (27) into the piston of brake В3 (14а). The rounded-off ends of sealing rings (14с), (28а) and (28b) should be directed outside Rounded-off end of a sealing ring (14d) should be directed in inside (address to an accompanying illustration 17.1).
3. Insert directing ring (28) pistons. The valve (137) in a directing ring of the piston should be from above.
4. Insert a disk spring (29) and a spring plate (30).
5. Establish a stripper (074) on a disk spring (29) and compress it until the groove for a lock ring will not be released.
6. Insert a lock ring (31).
7. Insert a disk spring (134b) and the block of disks (134) on an external support of brake В2.
8. Establish disks of brake В3 together in an order presented on an illustration (109) and insert them in turn.
9. Establish a press (078) on an external disk (70с).
10. Compress the block of disks by means of a press against the stop while the otmetochny ring will not be visible (a small arrow).
11. Measure a gap of L in three points between a lock ring (144а) and an external disk (134а). Size of gaps in a multidisk brake (В2) are provided in the table.

Parameters

Gap in multidisk brake В2, mm
Disk 4

1.90-2.30

Disk 5

2.00-2.40

12. Adjust a gap a lock ring (144а) if it is necessary. Thickness of a lock ring: 2.9, 3.2, 3.5, 3.8 and 4.1 mm.
13. Establish a lock ring (134a).