– Replace plug -1- after checking.
NOTICE
At a pad thickness of 1 mm, the brake shoes have reached
their wear limit and must be renewed (repair measure).
Procedure
Renewing rear brake shoes: ⇒ Brake system; Rep. gr. 46; Rear
brake; Removing and installing brake shoes.
4.12.3 Brake discs: checking condition
Check all brake discs for the following damage patterns:
♦ Cracks
♦ Scoring
♦ Rust (no surface rust)
♦ Burrs on circumference of brake disc
Note
Inform the customer if brake disc damage is similar to these
damage patterns. Renewing the brake discs is a repair meas‐
ure.
4.13 Electric windows: checking positioning
(open and close functions)
Note
The automatic opening and closing features for the electric
windows do not function after disconnecting and reconnecting
the battery. Therefore, before a new vehicle is delivered, the
window regulators must be reactivated. Once the windows have
been reactivated, the battery must not be disconnected again.
CAUTION
After batteries have been disconnected and reconnected the
roll-back function of the electric window regulators is disabled.
Severe pinching injuries could result!
Carry out the following procedure to position the electric window
regulators:
ID.4 2021 ➤
Maintenance - Edition 12.2020
4. Descriptions of work 39
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