WIRING BMW 3 SERIES 1990 E30 Workshop Manual

BMW 3 SERIES 1990 E30 Workshop Manual 3 SERIES 1990 E30 BMW BMW https://www.carmanualsonline.info/img/1/2759/w960_2759-0.png BMW 3 SERIES 1990 E30 Workshop Manual

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BMW 3 SERIES 1990 E30 Workshop Manual REPAIRS & OVERHAUL
Engine and Associated Systems
In-car engine repair procedures  Page 2A•1
General engine overhaul procedures Page2B•1
Cooling, heating and air conditioning systems Page3•1
Fuel

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BMW 3 SERIES 1990 E30 Workshop Manual 0•6Safety First!
Working on your car can be dangerous.
This page shows just some of the potential
risks and hazards, with the aim of creating a
safety-conscious attitude.
General hazards
Scalding
�

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BMW 3 SERIES 1990 E30 Workshop Manual 0•9Roadside Repairs
When jump-starting a car using a
booster battery, observe the following
precautions:
4Before connecting the booster
battery, make sure that the ignition is
switched off.
4Ensure

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BMW 3 SERIES 1990 E30 Workshop Manual move the component away from the engine to
tighten the belt, or towards the engine to
loosen the belt. Hold the accessory in
position, and check the belt tension. If it is
correct, tighten the two bol

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BMW 3 SERIES 1990 E30 Workshop Manual the lubricant will be hot, it would be wise to
wear rubber gloves.
3Raise the vehicle and place it on axle
stands. Make sure it is safely supported, and
as level as possible.
4Move the necessary equip

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BMW 3 SERIES 1990 E30 Workshop Manual 5If applicable, disconnect the reference
sensor wiring harness which runs across the
front of the timing belt cover, and set it aside.
6If the distributor cap is mounted directly to
the upper timing b

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BMW 3 SERIES 1990 E30 Workshop Manual 22Using a scraper, remove all traces of old
gasket material from the sealing surfaces of
the covers and engine block.
Caution: Be very careful not to
scratch or gouge the delicate
aluminium surfaces.

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BMW 3 SERIES 1990 E30 Workshop Manual otherwise a small brush or even a bicycle tyre
pump will work). The idea is to prevent dirt
from getting into the cylinders as the
compression check is being done.
3Remove all the spark plugs from the

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BMW 3 SERIES 1990 E30 Workshop Manual disconnect the fluid cooler lines from the
radiator. Use a drip tray to catch spilled fluid.
Plug the fluid cooler lines and fittings.
7Disconnect the coolant sensors located on
the radiator (see illu

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BMW 3 SERIES 1990 E30 Workshop Manual M20 engine
9Remove the distributor cap and HT leads,
ignition rotor and dust shield (see Chapter 1).
10Where applicable, remove the timing
sensor (see Chapter 5).
11Remove the timing belt upper cover
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