Check All Fuses and starter enable relay, test battery, If it is ok,perform diagnostic test with the required factory scan tools. See TSB .
DTB
Date:
February 7, 2005
Order No.:
T-B-80.57/32
Supersedes:
Group:
80
SUBJECT:
Model 163.154/157/172/174/175
Model Year 2000 to 2005
Engine Will Not Start and Fault Message "Start Error" Appears in Instrument Cluster
If you receive customer reports in the above model
vehicles of the engine not starting and the message
“Start Error†appearing in the instru
ment cluster, the drive authorizat
ion module may need to be replaced.
The drive authorization module (FBM) listed in the Part
s Information section below now contains modified
software to correct this condition.
Note:
This occurs when circuit 15 is truncated
after the engine control unit sends a drive
authorization system inquiry to the dr
ive authorization module. If circuit 15
is switched off during this inquiry
or is interrupted before the drive authorization modul
e can respond, the same variable code is again used
for the next circuit 15 cycle, as the
drive authorization module has saved t
he previous inquiry. This results
in the engine not starting for this key cycle.
To resolve, remove the old FBM control unit as
per WIS instruction AR54.21-P-1300GH and replace FBM
control unit with part number listed in
the parts information section below.
Note:
Step 6 of AR54.21-P-1300GH checks whether the vehi
cle can be started with all keys. Ensure
that all keys are available prior to beginning this procedure.
Parts Information
Qty
.
Part Name
Part Number
1
Control Unit (Note: Replaces
control unit A163 545 28 32)
A163 545 07 16 **
**
Parts are in a critical supply situati
on and will be limited, please see the
PAC weekly status report on parts availability
status and delivery
expectations. This report is located on the PAC website
.
This bulletin has been created and maintained in accordance w
i
th
MBUSA-SLP S423QH001, Document and Data Control, and
MBUSA-SLP S424HH001, Control of Quality
Records.
© 2005 Mercedes-Benz USA, LLC.
All rights rese
rved. Reproduction or translation in w
hole
Mercedes-Benz Canada, Inc.
or in part is not
permitted w
i
thout authorization from the
Dealer Workshop Services
pub
lisher. Printed in U.S.A.
www.
M
B
U
S
A
.
c
o
m
1-800-FOR-MERCedes
www.
s
t
a
r
t
e
k
i
n
f
o
.
c
o
m
Note:
The following allowable labor operations shoul
d be used when submitting a warranty claim for
this repair.
In Case of Warranty
Operation:
Control unit – drive authorization system
(DAS) (after test), replace (80-5030)
Damage Code
Operation Number
Time (hrs.)
Model Indicator (s)
82801 90
80 5030
0.5 hrs.
K0
T-B-80.57/32 (February
7, 2005)
2
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