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8.5
Removing and installing parking aid control unit J446 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
9
Emergency braking function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
9.1
Removing and installing City Emergency Braking System . . . . . . . . . . . . . . . . . . . . . . . . . . 120
96 - Lights, bulbs, switches - interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
1
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
1.1
Removing and installing front passenger airbag warning lamp . . . . . . . . . . . . . . . . . . . . . . 122
1.2
Removing and installing indicator lamp for central locking SAFELOCK function . . . . . . . . 122
1.3
Checking indicator lamp for central locking SAFELOCK function . . . . . . . . . . . . . . . . . . . . 122
1.4
Removing and installing front interior and reading light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
1.5
Removing and installing bulbs for front interior and reading light . . . . . . . . . . . . . . . . . . . . 126
1.6
Removing and installing front reading lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
2
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
2.1
Removing and installing light switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
2.2
Removing and installing headlight range control regulator . . . . . . . . . . . . . . . . . . . . . . . . 131
2.3
Removing and installing switch module in middle of dash panel . . . . . . . . . . . . . . . . . . . . 131
2.4
Removing and installing start-stop operation button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
2.5
Removing and installing hazard warning light switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
2.6
Removing and installing pushbutton for heated rear window . . . . . . . . . . . . . . . . . . . . . . . . 133
2.7
Removing and installing seat heater pushbutton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
2.8
Removing and installing key-operated switch to deactivate front passenger side airbag . . 133
2.9
Removing and installing operating unit for window regulator in driver door E512 . . . . . . . . 134
2.10 Removing and installing front window regulator switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
2.11 Removing and installing mirror adjustment switch E43 / E168 . . . . . . . . . . . . . . . . . . . . . . 136
2.12 Removing and installing driver side interior locking button for central locking system . . . . 137
2.13 Removing and installing centre console switch module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
2.14 Removing and installing pushbutton for emergency braking function . . . . . . . . . . . . . . . . 139
2.15 Removing and installing sliding sunroof adjustment regulator . . . . . . . . . . . . . . . . . . . . . . 139
3
Immobiliser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
3.1
Removing and installing immobiliser control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
3.2
Removing and installing immobiliser reader coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
4
Cigarette lighter, socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
4.1
Removing and installing cigarette lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
4.2
Removing and installing 12 V socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
4.3
Removing and installing bulb for illuminating cigarette lighter . . . . . . . . . . . . . . . . . . . . . . 142
97 - Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
1
Relay carriers, fuse holders, electronics boxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
1.1
Removing and installing electronics box (E-box) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
1.2
Removing and installing relay and fuse holder in electronics box . . . . . . . . . . . . . . . . . . . . 145
1.3
Removing and installing relay and fuse holder behind dash panel on driver side . . . . . . . . 147
2
Select Control units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
2.1
Removing and installing onboard supply control unit J519 . . . . . . . . . . . . . . . . . . . . . . . . 153
2.2
Removing and installing data bus diagnostic interface J533 . . . . . . . . . . . . . . . . . . . . . . . . 155
3
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
3.1
Repairing electrical wiring harnesses and plug-in connections . . . . . . . . . . . . . . . . . . . . . . 156
4
Vehicle diagnosis, testing and information systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
4.1
Online system test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
up! 2012 ➤
Electrical system - Edition 03.2017
Contents
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