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AR54.21 converter control unit

justanswer AR54.21 converter control unit User manual

  • Hello! I'm your chat assistant. I've reviewed the instructions for removing and installing the DC/AC converter control unit for Mercedes-Benz models 205.0, 205.1, 205.2 and 253. This document includes details on safety precautions, step-by-step removal, and installation procedures. I'm ready to answer your questions about this document.
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    What safety precautions should I take?
AR54.21-P-1600LW Remove and install DC/AC converter control unit 18.11.2019
Model 205.0/1/2, 253
with code U67 (230 V socket in rear passenger compartment)
Shown on model 205.0
1 Electrical connector
2 Bracket
3 Electrical connector
4 Nut
N24/3 DC/AC converter control unit
P54.21-3528-06
P54.21-3767-08
Shown on model 253.9 with code 810 (Sound system)
2 Bracket 4 Nuts
3 Electrical connector N24/3 DC/AC converter control unit
Risk of injury
Warning Warning caused by fingers being No parts of the body or limbs should be within AS00.00-Z-0011-01A
jammed or pinched when removing, installing the operating area when the components are
or aligning hoods, doors, trunk lid/rear-end moving.
door or sliding roof.
Risk of death
Danger Danger when working on component Do not touch damaged or defective live AS00.00-Z-0035-01A
parts and systems with U >= 30 V alternating component parts and lines or non-insulated
voltage (AC) or U >= 60 V direct voltage (DC) electrical connections and lines.
Topical noteTopical note Information on preventing damage to AH54.00-P-0001-01A
electronic components due to electrostatic
discharge
Notes on safety-relevant components AH00.00-Z-0019-01A
Page 1 of 2
© Mercedes-Benz AG, 1/3/22, X/01/22, ar54.21-p-1600lw, Remove and install DC/AC converter control unit
Model 205.0/1/2, 253 with code U67 (230 V socket in rear passenger compartment)
Notes on HANDS-FREE ACCESS AH80.61-P-0001-01A
Remove/install
1.1 Remove right luggage compartment lining. Model 205.0/1
with code U67 (230 V socket in rear
passenger compartment)
AR68.30-P-4600LW
1.2 Release load compartment trim at right in rear Model 205.2, 253
area far enough to gain access to the DC/AC with code U67 (230 V socket in rear
converter control unit (N24/3). passenger compartment)
Model 205.2 AR68.30-P-1180LWS
with code U67 (230 V socket in rear
passenger compartment)
Model 253 (except 253.992/993) AR68.30-P-1180LWG
with code U67 (230 V socket in rear
passenger compartment)
Model 253.992/993 AR68.30-P-1180RFW
with code U67 (230 V socket in rear
passenger compartment)
2 Detach ground line of on-board electrical AR54.10-P-0003LW
system battery.
3 Unclip electrical connector (1) from holder (2). Model 205.0/1
up to model year 2019
with code U67 (230 V socket in rear
passenger compartment)
4 Disconnect electrical connector (3) from DC/ Model 205.0/1/2
AC converter control unit (N24/3). as of model year 2019
with code U67 (230 V socket in rear
passenger compartment)
There are two electrical connectors on the DC/
AC converter control unit (N24/3).
5 Unscrew nuts (4) and remove DC/AC
converter control unit (N24/3).
6 Remove DC/AC converter control unit (N24/3) When replacing DC/AC converter control unit
from holder (2). (N24/3).
7 Install in the reverse order.
Page 2 of 2
© Mercedes-Benz AG, 1/3/22, X/01/22, ar54.21-p-1600lw, Remove and install DC/AC converter control unit
Model 205.0/1/2, 253 with code U67 (230 V socket in rear passenger compartment)
/