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Notes on self-locking nuts and bolts |
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AH00.00-N-0001-01A |
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When working on the front-end assembly, be careful not to scratch, mark or notch the surfaces of aluminum parts. Otherwise the service life of the parts will be affected |
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Installation |
Tighten nuts and bolts of chassis components only when vehicle is in the ready-to-drive condition. |
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| 1 |
Empty front air springs using STAR DIAGNOSIS |
Vehicles with AIRmatic (semi-active air suspension), code 489 STAR DIAGNOSIS diagnosis system |
*WH58.30-Z-1048-13A |
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Special information on AIRmatic |
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AH32.22-P-1000-02T |
| 2.1 |
Remove trim panels of the cylinder head cover and of the charge air distribution pipe |
Engines 646, 647 |
AR01.20-P-5014-02A |
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Engine 648 |
AR01.20-P-5014-02C |
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*BA01.20-P-1002-01G |
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*BA01.20-P-1003-01G |
| 2.2 |
Remove air filter housing with air ducts |
Engine 112, 113.967: Lift air filter housing vertically off rubber retainers on cylinder head covers. Engine 113.990 |
AR09.10-P-1150SVK |
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Engine 156 |
AR09.10-P-1150TMG |
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Engine 271 |
AR09.10-P-1150Q |
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Engines 272, 273 |
AR09.10-P-1150TS |
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Engine 628 |
AR09.10-P-1150TD |
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Engine 629 |
AR09.10-P-1150TJ |
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Installation:
Rub the rubber retainers on the cylinder head covers and the sealing ring of the hot film mass air flow sensor in the air filter housing with liquid lubricant. Lubricant |
*BR00.45-Z-1002-06A |
| 2.3 |
Remove engine trim panel |
Engine 642 |
AR01.10-P-2405TI |
| 3 |
Attach engine support frame |
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AR33.10-P-0100-01T |
| 4.1 |
Remove bottom section of soundproofing |
Vehicles with diesel engines |
AR94.30-P-5300T |
| 4.2 |
Remove engine compartment paneling |
Vehicles with gasoline engines |
AR61.20-P-1105T |
| 5 |
Unscrew bolt (14) of left and right front engine mount from front axle carrier (6). |
Engines 628, 629, 642, 646, 647, 648 |
*BA22.10-P-1001-01D |
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Engine 271, 272 |
*BA22.10-P-1006-01O |
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Engine 273 |
*BA22.10-P-1002-03A |
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Engine 156 |
*BA22.10-P-1006-01S |
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Engine 112, 113 |
*BA22.10-P-1001-01L |
| 6 |
Raise engine |
On engines 112 and 113 ensure that the hot film mass air flow sensor is not against the body. Do not over-tension lines and hoses. These components can become damaged. |
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| 7 |
Remove nuts (23b) and remove link rods (23) from stabilizer bar (10). |
Check rubber mounts of link rods for damage; fit new link rods if necessary.
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*BA32.20-P-1002-02B |
| 8 |
Prop front axle carrier (6) with transmission jack and transmission plate |
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AR33.10-P-0100-03T |
| 9 |
Remove bolts (8a, 8b) from front axle carrier (6) |
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*BA33.10-P-1005-01A |
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*BA33.10-P-1004-01A |
| 10 |
Lower front axle carrier (6) |
Do not stretch the steering coupling (12). |
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| 11 |
Remove bolts (21e) and remove retaining bracket (21b) |
Installation:
The retaining brackets on the torsion bar (10) must
be replaced.
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*BA32.20-P-1007-02B |
| 12 |
Take off torsion bar (10) |
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| 13 |
Install in the reverse order |
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| 14 |
Perform chassis alignment |
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AR40.20-P-0200T |