31 12 023 Measuring Play of Wheel Control Joints
31 12 023 Measuring play of wheel control joints1. Slide (31 1 061)
2. Measuring electronics (31 1 062)
3. Magnetic retainer E46 (31 1 063)
4. Evaluation electronics (31 1 064)
5. Magnetic retainer (31 1 065)
6. Hook wrench (31 1 066)
7. Measuring clip (31 1 067)
E53:
On vehicles with 17" or 18" rims, the wheels must be removed.
Position magnetic retainers (1) on housing cover of control arm (2).
Important: Make sure magnetic retainers are correctly seated in control arm.
E46/E85:
On vehicles with 15" rims, the wheels must be removed.
Position magnetic retainers (1) on housing base of control arm (2).
Important: Make sure magnetic retainers are correctly seated in control arm.
Fit measuring clip (1) on threaded stem (2) of joint and screw down with locating screw (3).
Note: Measuring clip must not contact the control arm.
Press button on evaluation electronics.
The device performs a self-test.
The LEDs flash, then the red LED lights up permanently.
Move sensor with slide upward until the green LED lights up.
Note: Gap (A) between sensor and magnetic retainer approximately 5-7 mm.
Then secure slide with clamping screw (1).
Press evaluation electronics button for approximately 2 seconds until the green LED flashes.
The device is now calibrated and ready for measuring.
Important: Measuring clip must not contact the control arm.
E46, E85
1st check:
Set torque wrench to 60 Nm.
Introduce a force with hook wrench (1) in the direction shown until torque is obtained.
^ Red LED flashes: joint must be replaced.
^ Green LED flashes: Carry out 2nd check.
2nd check:
Reposition hook wrench.
Introduce a force with hook wrench (1) in the direction shown until torque is obtained.
Read off test result:
^ Red LED flashes: joint must be replaced.
^ Green LED flashes: joint must not be replaced.
E53
1st check:
Set torque wrench to 60 Nm.
Introduce a force with hook wrench (1) in the direction shown until torque is obtained.
^ Red LED flashes: joint must be replaced.
^ Green LED flashes: Carry out 2nd check.
2nd check:
Reposition hook wrench.
Introduce a force with hook wrench (1) in the direction shown until torque is obtained.
Read off test result:
^ Red LED flashes: joint must be replaced.
^ Green LED flashes: joint must not be replaced.