62 12 000 - Speedometer - remove and install < 62 - Instruments < BMW 728 - 745i
 
REMOVING AND INSTALLING
SPEEDOMETER

Remove and install instrument carrier
62 21 000.


Siehe auch 62 21 000
 
Pull off adhesive tape.

73362011 - click to zoom
 
Pull strips of adhesive tape.
Installation:
Insert control lamp lens.

73362012 - click to zoom
 
Unscrew bolts.
Take off housing of instrument carrier.
Important!
Never touch printed circuit boards with bare
hands.

73362013 - click to zoom
 
Remove speedometer.

73362017 - click to zoom
 
Testing Speedometer:
(speedometer installed)
Pull off speedometer plug on final drive.
Connect BMW service test unit (test step
Multimeter 13) on speedometer plug according
to instructions supplied with unit.
Connections:
Black chips to brown wire.
Blue chips to brown/red wire.
Turn on ignition and put in frequency¹) on
BMW service test unit.
Compare frequency input and speedometer
gauge reading with values for speedometer in
Specifications.


Siehe auch ¹) See Specifications
 
From model '83
REMOVING AND INSTALLING
SPEEDOMETER
Remove instrument cluster up to the step of
removing the speedometer - see 62 11 000.
Installation:
Check constant W (K)*:


Siehe auch 62 11 000
Siehe auch * See Specifications
2862014 - click to zoom
 
Checking Speedometer:

a)
Pull off plug for speedometer on final drive.
Connect BMW service test unit (multimeter
test step 13) on plug for speedometer according
to operating instructions.
Connections:
Black clip on brown wire.
Blue clip on brown/red wire.
Turn on ignition.
Put in frequency* on BMW service test unit.

b)
Instrument cluster removed.
See simulator for checking instrument
clusters - page 62 - 81.


Siehe auch * See Specifications