5 Series E39 520i (M52TU) SAL
VS-21/Seyfried
Baugruppe/Group: 11
11 01 99 (517)
weltweit
all countries
Datum/Date:
12/1999
Leak in cylinder head in area of cylinder No. 1
E36/7, E38, E39, E46/M52TU
Situation:
Cylinder heads with manufacturing faults, i.e. that exhibit hairline cracks in the area of
cylinder No. 1, may be installed on the vehicles specified below.
Effect:
-
Coolant loss at cylinder No. 1 on exhaust side in area of chain tensioner - see figure
below.
-
Check message "Check coolant level"
-
Engine temperature gauge shows increased temperature
Affected
vehicles:
E36/7 (Z3), E38, E39, E46 each with M52TU engine
Production period: From September 1999 to October 1999
Action:
It will be necessary to install a new cylinder head in the case of customer complaints
relating to this fault symptom.
Procedure:
Replace cylinder head, replace valve stem seals - refer to Repair Instructions:
11 12 100 - Removing and installing/sealing cylinder head
11 12 503 - Disassembling and assembling the cylinder head
Parts:
Description:
Part number
Quantity
Cylinder head with bearing banks
M52TU B20
M52TU B25 and B28
11 12 1 439 723
11 12 1 439 724
1
1
Set of cylinder head gaskets
(also contains valve stem seals)
M52TU B20
M52TU B25 and B28
11 12 1 436 821
11 12 1 436 822
1
1
Set of cylinder head bolts
M52TU all displacement variants
11 12 1 740 065
1
SI Leak in cylinder head in area of cylinder No. 1 E36/7, E38, E39, E46/M52TU
BMW AG - TIS
04.02.2013 21:41
Issue status (12/2007) Valid only until next DVD is issued
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