(631-2308) Checking the Suspension Arm
Symptom: Play between rear bush and suspension arm. Can lead to noise when driving.
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MODIFICATION INSTRUCTION
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Bulletin Nbr:
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631-2308
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Date:
...........
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Oktober 2001
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Market:
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enligt lista
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Checking the Suspension Arm
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Customer Satisfaction Campaign 154 03
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Cars in stock must be remedied before delivery.
A personal communication must be sent to the owners of cars already delivered requesting them to get in touch with the nearest Saab garage as soon as possible to have the nonconformity rectified.
Saab 9-5 year 2002 model within chassis number range 23000410 - 23002868
The bolts that hold the rear bush to the suspension arm may have been exposed to welding spatter. This may have the effect that insufficient grip is attained when the suspension arm's rear bush is fitted.
Symptom description
Play between rear bush and suspension arm. Can lead to noise when driving.
To carry out the procedures described the following additional tools are required, which are not included in Saab's toolbox.
Threading die M14x2
21mm Clawfoot spanner
For checking
79 87 456 Nut, 2
52 38 712 Bolt, 4
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Note
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Do
not
order the following parts before the defect with the suspension arm has been verified. The defective production issue is only around 2% and there is the risk that the parts will be left in stock.
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To replace the left suspension arm
52 36 674 Arm LH
51 25 802 Bolt, 3
46 85 129 Washer, 3
43 48 512 Nut, 4
51 25 745 Bolt, 1
46 85 996 Bolt, 1
43 48 009 Nut, 1
To replace the right suspension arm
52 36 682 Arm RH
51 25 802 Bolt, 3
46 85 129 Washer, 3
43 48 512 Nut, 4
51 25 745 Bolt, 1
46 85 996 Bolt, 1
43 48 009 Nut, 1
Check box A4 of the modification identity plate before proceeding. Continue as follows if the box has not been marked.
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2.
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Diesel:
Remove the lower rear engine cover.
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3.
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Remove the rear bush's fixing bolts from the subframe.
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4.
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Remove the rear bush's nuts from the suspension arm.
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5.
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Prise away the suspension arm from the subframe. Use a crowbar.
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6.
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Remove the bush from the journal.
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7.
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Clean the thread with threading die M14x2.
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Note
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Use only
manual force
without a brace.
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Does the threading die move easily along the whole thread?
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8.
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If
YES
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8.a.
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Fit the bush and a
new
nut to the suspension arm without torque-tightening the nut.
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8.b.
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Fit the bush to the mounting on the subframe with
new
bolts.
Tightening torque 120 Nm +90° (88 lbf ft +90°)
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8.c.
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Raise the suspension arm with a jack to the same level as to when the car is on its wheels.
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8.d.
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Tighten the nut to the suspension arm's rear bush. Use a 21mm clawfoot spanner.
Tightening torque 110 Nm (80 lbf ft)
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9.
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If
NO
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Change the suspension arm as per the following steps.
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9.a.
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Remove the front wheel.
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9.b.
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Remove the suspension arm's forward mounting to the subframe.
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9.c.
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Remove the ball-and-socket joint from the steering swivel member and lift down the suspension arm.
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9.d.
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Remove the ball-and-socket joint from the suspension arm.
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9.e.
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Remove the front bush, use 89 96 787 press sleeve set, front suspension arms (KM-508-1 and KM-508-3). Smear with soapy water.
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9.f.
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Fit the front bush to the new suspension arm, use 89 96 787 press sleeve set, front suspension arms (KM-508-1, KM-508-3 and KM-508-4). Smear with soapy water.
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9.g.
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Fit the rear bush to the suspension arm without torque-tightening the nut.
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9.h.
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Fit the ball-and-socket joint to the suspension arm.
Tightening torque 60 Nm +30° (22.5 lbf ft +30°)
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9.i.
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Fit the ball-and-socket joint to the steering swivel member.
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9.j.
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Fit the suspension arm into the subframe and fit the bolts for the front and rear mountings.
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9.k.
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Raise the suspension arm with a jack to the same level as to when the car is on its wheels.
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9.l.
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Tighten the bolt to the suspension arm's front bush.
Tightening torque 110 Nm +90° (81 lbf ft +90°)
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9.m.
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Tighten the suspension arm's rear mounting to the subframe.
Tightening torque 120 Nm +90° (88 lbf ft +90°)
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9.n.
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Tighten the bolt that holds the ball-and-socket joint to the steering swivel member.
Tightening torque 50 Nm (37 lbf ft)
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9.o.
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Tighten the nut that holds the rear bush to the suspension arm.
Tightening torque 110 Nm (81 lbf ft)
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9.p.
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Refit the wheel. See - Suspension, wheel - Wheel and tyre - Adjustment / Replacement - Wheel.
Tightening torque 110 Nm (81 lbf ft)
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10.
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Carry out the procedure from and including point 3 for the other suspension arm.
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11.
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Diesel:
Refit the lower rear engine cover.
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12.
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Lower the car to the ground.
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13.
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If a suspension arm has been changed then the toe value must be checked and adjusted if necessary as described under WIS - Suspension, wheel - Suspension, front - Adjustment, Replacement - Wheel alignment.
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Marking the modification identity plate
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On completion of the necessary rectification, box A4 on the modification identity plate must be marked. If the work is carried out by the importer, mark the box with a "7". If done by the dealer, mark it with an "8".
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Time/Warranty information
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See separate information.
