5 Series E39 M5 (S62) SAL
VS-21/Seyfried
Baugruppe/Group: 11
11 01 01 (661)
weltweit
all countries
Datum/Date:
03/2001
Rattling noise after engine start
E39, E52 / S62
Situation:
Rattling noise in the first few seconds after starting the engine (area of VANOS control
unit/s).
The VANOS hydraulics cause rattling noises after the engine start due to the varying torque
of the camshaft before sufficient VANOS oil pressure has built up.
When the engine is stopped, the oil runs out of the high-pressure chamber in the
adjustment cylinder. This can cause the VANOS adjustment piston to move freely against
the housing during startup.
This noise has no effect on the engine's power output or durability.
Affected
vehicles:
E39 S62 (M5), E52 S62 (Z8)
Manufacturing period: from the start of series production up to November 2000
Action:
In case of customer complaint, a shutoff valve may be retrofitted to the VANOS
accumulator.
List of parts for retrofitting on vehicles from start of series production until August 2000:
-
VANOS accumulator shutoff valve, electrical parts
-
VANOS accumulator shutoff valve, mechanical parts
-
DME data status (from CD 23)
List of parts for retrofitting on vehicles from September 2000 until November 2000:
-
VANOS accumulator valve, mechanical parts
Start of series production of VANOS accumulator shutoff valve: December 2000
Procedure:
Retrofit VANOS accumulator shutoff valve, electrical parts (only applies to vehicles from
start of series production until August 2000):
-
The scope of electrical parts for retrofitting the VANOS accumulator shutoff valve
consists of the following components:
•
Wiring kit (consisting of connector, brown wire and red-violet wire with stop)
•
Butt connector, shrinkable PVC hose
•
Cover for wiring duct, left and right
•
Red-violet substitute wire, length 100 mm with stop
Note:
The red-violet substitute wire is only needed if the stop on the above wiring kit is
damaged while being threaded.
-
Disconnect battery.
-
Remove the air intake duct (intake air silencer, upper section, air mass meter, bellows)
for cylinder banks 1 and 2.
-
Remove the manifold.
-
Separate plug connections (see Fig. 1, items 1 and 2).
SI Rattling noise after engine start E39 E52 S62
BMW AG - TIS
21.02.2013 03:24
Issue status (12/2007) Valid only until next DVD is issued
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