Running gear, axles, steering

Chapter overview

• Technical data
  1
• 1 Safety information
  1
• 1.1 Safety measures when working on vehicles with start/stop system
  1
• 1.2 Safety precautions when working on high-voltage system
  1
• 1.3 Safety precautions when working in the vicinity of high-voltage components
  2
• 1.4 Safety precautions when working on subframe
  2
• 2 Repair instructions
  3
• 2.1 Leaks at shock absorbers
  3
• 2.2 Noises from shock absorbers
  3
• 2.3 Checking shock absorbers when removed
  4
• 2.4 Steering rack
  4
• 2.5 Gaskets and seals
  5
• 2.6 Nuts and bolts
  5
• 2.7 Electrical components
  5
• 2.8 Raising suspension to unladen position (vehicles with coil springs)
  6
• 3 Evaluating accident vehicles
  10
• 3.1 Check list for evaluating running gear on accident vehicles
  10
• 4 Disposal
  12
• 4.1 Releasing gas and draining front gas-filled shock absorbers
  12
• 4.2 Releasing gas and draining rear gas-filled shock absorbers
  13
• Front suspension
  15
• 1 Front axle
  15
• 1.1 Overview of fitting locations - front axle
  15
• 2 Subframe
  18
• 2.1 Assembly overview – subframe
  18
• 2.2 Removing and installing subframe without steering rack
  18
• 2.3 Removing and installing subframe with steering rack
  24
• 2.4 Repairing subframe
  32
• 2.5 Repairing thread in longitudinal member
  44
• 2.6 Fixing subframe in position
  44
• 2.7 Lowering subframe
  48
• 3 Anti-roll bar
  53
• 3.1 Assembly overview - anti-roll bar
  53
• 3.2 Removing and installing anti-roll bar
  53
• 3.3 Removing and installing coupling rod
  59
• 4 Suspension strut, upper suspension link
  61
• 4.1 Assembly overview - suspension strut, upper suspension link
  61
• 4.2 Removing and installing suspension strut
  62
• 4.3 Repairing suspension strut
  73
• 5 Lower suspension link, swivel joint
  77
• 5.1 Assembly overview - lower suspension link, swivel joint
  77
• 5.2 Removing and installing lower suspension link
  78
• 5.3 Checking swivel joint
  92
• 5.4 Removing and installing swivel joint
  92
• 5.5 Renewing front bonded rubber bush for lower suspension link
  97
• 5.6 Renewing rear bonded rubber bush for lower suspension link
  100
• 6 Wheel bearing
  105
• 6.1 Assembly overview – wheel bearing assembly
  105
• 6.2 Removing and installing wheel bearing housing
  105
• 6.3 Removing and installing wheel bearing unit
  112
• 7 Drive shaft
  117
• 7.1 Overview - drive shaft
  117
• 7.2 Assembly overview – drive shaft
  118
• 7.3 Removing and installing drive shaft
  124
• 7.4 Loosening and tightening threaded connections of drive shaft
  144
• 7.5 Removing and installing drive shaft heat shield
  145
• 7.6 Dismantling and assembling drive shaft
  146
• 7.7 Checking outer constant velocity joint
  172
• 7.8 Checking inner constant velocity joint
  173
• Rear suspension
  176
• 1 Rear axle
  176
• 1.1 Overview – rear axle
  176
• 1.2 Lowering rear axle
  178
• 1.3 Removing and installing rear axle
  188
• 1.4 Removing and installing shield for rear axle
  201
• 2 Subframe
  203
• 2.1 Assembly overview – subframe
  203
• 2.2 Assembly overview - add-on parts for subframe
  204
• 2.3 Fixing subframe in position
  205
• 2.4 Repairing subframe
  220
• 3 Anti-roll bar
  235
• 3.1 Assembly overview - anti-roll bar
  235
• 3.2 Removing and installing anti-roll bar
  236
• 3.3 Removing and installing coupling rod
  238
• 4 Suspension link, track rod
  241
• 4.1 Assembly overview - transverse link
  241
• 4.2 Assembly overview - track rod
  245
• 4.3 Removing and installing upper transverse link
  246
• 4.4 Removing and installing lower transverse link
  247
• 4.5 Removing and installing track rod
  249
• 5 Suspension strut, shock absorber, spring
  251
• 5.1 Assembly overview - suspension strut, shock absorber, spring
  251
• 5.2 Removing and installing shock absorber
  252
• 5.3 Repairing shock absorber
  255
• 5.4 Removing and installing spring
  257
• 6 Wheel bearing assembly, trailing arm
  264
• 6.1 Assembly overview – wheel bearing assembly
  264
• 6.2 Assembly overview - trailing arm
  266
• 6.3 Removing and installing wheel bearing housing
  267
• 6.4 Removing and installing wheel bearing unit
  279
• 6.5 Renewing bonded rubber bush for wheel bearing housing
  286
• 6.6 Removing and installing trailing arm with mounting bracket
  290
• 6.7 Repairing trailing arm
  294
• 7 Drive shaft
  305
• 7.1 Assembly overview – drive shaft
  305
• 7.2 Loosening and tightening threaded connections of drive shaft
  309
• 7.3 Removing and installing drive shaft
  310
• 7.4 Dismantling and assembling drive shaft
  318
• 7.5 Checking outer constant velocity joint
  325
• 7.6 Checking inner constant velocity joint
  326
• Self-levelling suspension
  329
• 1 Electronically controlled damping system
  329
• 1.1 Overview of fitting locations - electronically controlled damping system
  329
• 1.2 Removing and installing electronically controlled damping control unit J250
  331
• 1.3 Removing and installing front body acceleration senders G341/G342
  334
• 1.4 Removing and installing rear left body acceleration sender G699
  336
• 2 Vehicle level sender
  340
• 2.1 Assembly overview - front vehicle level senders
  340
• 2.2 Assembly overview - rear vehicle level senders
  341
• 2.3 Removing and installing front vehicle level senders G78/G289
  342
• 2.4 Removing and installing rear vehicle level senders G76/G77
  344
• Wheels, tyres, vehicle geometry
  346
• 1 Wheel alignment
  346
• 1.1 Notes for wheel alignment
  346
• 1.2 Conditions for testing
  347
• 1.3 Test preparations
  347
• 1.4 Specifications for wheel alignment
  349
• 1.5 Wheel alignment procedure
  351
• 1.6 Necessity of wheel alignment
  353
• 1.7 Vehicle data sticker
  354
• 1.8 Adjusting camber at front wheels
  355
• 1.9 Adjusting camber on rear axle
  357
• 1.10 Adjusting toe at rear axle
  358
• 1.11 Adjusting front axle toe
  359
• 1.12 Wheel runout compensation
  360
• 1.13 Checking maximum wheel lock
  361
• Steering
  362
• 1 Steering wheel
  362
• 1.1 Assembly overview – steering wheel
  362
• 1.2 Removing and installing steering wheel
  363
• 2 Steering column
  365
• 2.1 Assembly overview – steering column
  365
• 2.2 Checking steering column for damage
  366
• 2.3 Handling and transporting steering column
  367
• 2.4 Removing and installing steering column
  368
• 2.5 Removing and installing control unit for electronic steering column lock J764
  377
• 3 Steering rack
  380
• 3.1 Assembly overview – steering rack
  380
• 3.2 Removing and installing steering rack
  385
• 3.3 Removing and installing boot
  396
• 3.4 Removing and installing track rod
  398
• 3.5 Removing and installing track rod ball joint
  403
• 3.6 Repairing steering rack
  404
• 4 Sensors
  410
• 4.1 Removing and installing steering angle sender G85
  410