Assembly overview - wheel
Overview shows one aluminium wheel as an example
1 - Tyres
❏ → Rep. gr.44; Removing and installing wheel
❏ → General information on wheels and tyres; Rep. gr.44; Tyres
❏ → General information on wheels and tyres; Rep. gr.44; Tyre damage and wear
❏ → General information on wheels and tyres; Rep. gr.44; Vibration and reduced driving performance caused by wheels/tyres
❏ → General information on wheels and tyres; Rep. gr.44; Fitting tyres
2 - Tyre pressure sensor
3 - Valve
❏ → General information on wheels and tyres; Rep. gr.44; Fitting tyres; Removing and installing valve
4 - Carrier
❏ Depending on equipment/version
5 - Bolt
❏ Depending on equipment/version
6 - Trim element
❏ Depending on equipment/version
7 - Anti-theft wheel bolt
❏ Depending on equipment/version
❏ → Rep. gr.44; Positioning anti-theft wheel bolts - steel wheels
❏ 120 Nm
8 - Adapter for anti-theft wheel bolt
❏ → General information on wheels and tyres; Rep. gr.44; Wheel bolts/wheel nuts; Master sets for anti-theft wheel bolts
9 - Wheel cap
❏ → General information on wheels and tyres; Rep. gr.44; Fitting tyres; Removing and installing wheel caps for alloy wheels
10 - Wheel bolt
❏ Qty. 4 or 5
❏ → General information on wheels and tyres; Rep. gr.44; Tyre bolts/wheel nuts; versions
❏ 120 Nm
11 - Adhesive balancing weights
❏ → General information on wheels and tyres; Rep. gr.44; Fitting tyres; Balancing wheels
12 - Wheel rim
❏ → General information on wheels and tyres; Rep. gr.44; Wheel rims
❏ → General information on wheels and tyres; Rep. gr.44; Vibration and reduced driving performance caused by wheels/tyres; Check radial and axial run-out on wheel rim
Removing and installing wheel
Removing
Vehicles with wheel trim
– Remove wheel trim.
All vehicles (continued)
Models with wheel bolt cap
– Detach wheel bolt cap.
All vehicles (continued)
Models with anti-theft wheel bolt
– Detach anti-theft wheel bolt.
All vehicles (continued)
– Loosen wheel bolts -arrows-.
– Raise vehicle.
– Unscrew bolts -arrows-, and remove wheel.
Installing
Install in reverse order of removal, observing the following:
– → Rep. gr.44; Clean contact surfaces of rim.
Vehicles with steel wheels
– → Rep. gr.44; Positioning anti-theft wheel bolts for steel wheels.
All vehicles (continued)
Tightening torques
♦ → Rep. gr.44; Assembly overview - wheel
Cleaning contact surfaces on rim
Important
● Wheel bolts and wheels may come loose due to corrosion, dirt and lubricant; affected parts and sections must be cleaned.
– Clean contact surfaces -arrows- on brake disc.
– Clean contact surface -arrow- on centring seat of wheel hub.
– Clean contact surface -arrow- on inside of rim and centring seat.
– Clean seats in holes for wheel bolts and threads of wheel bolts.
– Apply a thin coat of assembly paste to ends of wheel bolt threads → Electronic parts catalogue.
– Apply wax in vicinity of centring ring -arrow- using a brush.
Positioning anti-theft wheel bolts - steel wheels
Steel wheels with four holes
Screw anti-theft wheel bolt -arrow- into hole farthest away from valve -1-.
Steel wheels with five holes
Screw anti-theft wheel bolt into hole to right or left -arrows- of valve -1-.
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