1997 BMW 528i Coolant hose

Downloaded from www.Manualslib.com manuals search engine
Spare parts kit
Carrying a basic set of spare parts can prevent a rninorbreak-
down from turning into a major repair annoyance. The list be-
low is a good place to start.
Spare parts kit
- basic
Polyribbed drive
belt(s)
BMW engine oil: one or two quarts
BMW engine coolant:
1 gallon of premixed 50150 BMW
anti-freeze and water
Fuse assortment:
7.5A. IOA, 1 5A, 20A, 30A. 50A
Radiator hoses: upper and lower
Spare parts
kit - additional contents
Exterior lighting bulbs: headlight, bralte light, turn signal,
and taillight
* Wiper blades or blade inserts
Brake fluid: new, unopened bottle, DOT
4 specification
Main relay for DME system

Downloaded from www.Manualslib.com manuals search engine
Table b. Inspection I Service (continued)
Checlt transmission and differential for
external lealts.
Check CV joint boots for damage or leaks.
Visually
check fuel tank, fuel lines, and
connections for
leaks.
New parts
Tools Required required
Check condition, position, and mounting
ol
exhaust system. Visually check and adjusl
if necessary.
Check power steering system for lealts.
Check power steering
fluid level and adjust
if necessary.
Check steering racidbox and tie rods for
tightness. Checit condition of front axle
joints, steering
linkage, and steering shaft
joints.
Check overall thickness of front and rear
bralte pads using
BMW special tool. If
replacement is necessary:
Examine brake disc surface.
Clean brake pad contact points in calipers
Grease wheel centering hubs.
Checlt thickness of parking brake linings
only when replacing rear brake shoes.
Checit operation of pariting brake and
adjust as necessary.
Checlt front control arm bushings for
damage or wear.
Check brake system connections and
lines
for leaks, damage, and incorrect
positioning Warm
engine
(~ealer service Irepair , required recommended lnformat~on
Check parking braite actuator. Adjust if
necessary
Check ail tire pressure (including spare)
and correct if necessary.
Checlt condition of tires (outer tread
surface), tread wear pattern: in case of
uneven wear, perform wheel alignment.
inspect entire body according to terms of
rust oerforation limited warrantv. (Must be
*:
4:
2 ~ perfdrmed at least every two years). I
Read out on-board diagnostic (OBD 11) fault
codes.
Checkengine coolant
system1 heater hose
connections for
leaks.
Checit coolant level and antifreeze
protection level. Add coolant as necessary.
* 100113010BD
I
170

Downloaded from www.Manualslib.com manuals search engine
Maintenance
< Release mass air flow sensor clips (A).
Release upper air filter housing clips (B).
4 Lift air filter upper housing, and remove filter element.
NOTE-
V-8 engine air filter assembly shown in illustration. 6-cylinder
air filter assembly is similar but located at the left front of the
engine compartment.
- On installation, install O-ring for mass air flow sensor into
retaining clips in air filter upper housing.
- Replace air filter and upper air filter housing, and attach
upper air filter housing clips.
Cooling system, checking
Antifreeze raises the boiling point and lowers the freezing
~oint of the coolant. BMW recommends enaine coolantthat is
a 50 150 mixture of distilled water and ethGene glycol-based
antifreeze.
Routine cooling system maintenance consists of maintaining
the coolant level and inspecting hoses. Because the coolant's
anticorrosion and antifreeze additives gradually lose their ef-
fectiveness, replacement of the coolant every three years is
recommended.
CAUJION-
Use only BMWapprovedphosphate-free antifreeze when
filing the cooling system. Use of antifreeze containing
phosphates is harmful to the cooling system.
4 Float in radiator tank indicates coolant level. Inspect while
coolant is cold.
When upper mark on float is level with top of filler neck,
coolant is at minimum allowable level.
When lower mark on float is level with top of filler neck,
coolant is at maximum level.
Hose connections should be tight and dry. Coolant seepage
nnection indicates either that hose clamp is

Downloaded from www.Manualslib.com manuals search engine
020-1 6
Maintenance
loose, hose is damaged, or connection is dirty or corroded.
Dried coolant has achalky appearance. Hoses should be firm
and springy. Replace any hose that is cracked, has become
soft and limp, or has been contaminated by oil.
4 As a preventive measure, replacement of the cooling system
hoses every four years is recommended. The illustration
shows examples of damage to coolant hoses. Any of these
conditions is cause for replacement (illustration courtesy of
/ Abrasion Damaged Hose Heat Damaged Hose 1 Gates Rubber Company, I~c.).
Engine drive belt, replacing
Drive belts and pulleys transfer power from the engine crank-
shaft to various accessories.
E39 models use two polyribbed
(serpentine) belts:
The outer belt turns the
NC compressor.
0 The inner, longer belt turns the alternator (generator), cool-
ant pump and power steering pump.
Inspect drive belts with the engine off. If the belt shows signs
of wear, cracking, glazing, or missing sections, it should be
replaced
immediately. To reduce the chance of belt failure
while driving, replacement of the belts every four years is
recommended.
WARNING -
Observe care when replacing belts. Personal injury could
result if a tensioner springs back into position uncontrolled.
CA UTIOI\C
Mark drive belt rotation direction if removing and reusing an
old belt.
NOTE-
When belts are replaced with new ones, store the old set in
the trunk for emergency use.
All models, use
BMW special tools 11 5 030 and 11 5 040 to
loosen and remove cooling fan and clutch from coolant
pump.
NOTE-
32 mm cooling fan nut has left-hand threads
If necessary, remove fan cowl from radiator.

Downloaded from www.Manualslib.com manuals search engine
Engine Removal and lnstallationl
NOTE-
BMW uses three styles of fuel line connections; a one-time
single use clamp, a locking fitting that uses special tool
16 1
050 to release, and a quick release sleeve (arrow) that dis-
connects the line when depressed.
WARNING-
Fuel may be expelled under pressure. Do not smoke or work
near heaters or other fire hazards. Keep a fire extinguisher
handy Before disconnecting fuel hoses, wrap a cloth around
fuel hoses to absorb any leaking fuel. Plug all
oDen fuel lines.
< M52 engine: Remove throttle valve and ASC throttle
assemblies.
Disconnect ASC throttle cable
(A).
Remove ASC throttle housing mounting fasteners (El).
Clamp off, disconnect, and plug coolant hoses (C).
Disconnect throttle and cruise control cables (D).
Remove throttle housing mounting hardware and throttle
valve.
NOTE-
M52 TU, M54 engine: Throttle body is removed with intake
manifold.
< M52 TU engine: Pull throttle cable out of rubber retainer (A)
and unloclc ball end of cable (6) from throttle actuator.

Downloaded from www.Manualslib.com manuals search engine
Engine Removal and installatid
4 Remove cylinder head top cover:
Remove plastic trim caps
(arrows).
Remove cover retaining fasteners and lifl off cover.
- Remove alternator cooling tube.
4 Drain engine coolant and remove coolant hoses:
* Remove expansion tank cap on coolant reservoir.
Place a
3 gallon pail beneath engine to capture coolant,
* Remove coolant drain plug located on exhaust side of
cylinder
2 of engine block (arrow).
NOTE-
Drain plug for M52 TU and M54 engine shown. Plug for M52
located between cylinders 4 and 5.
Drain radiator by removing plastic drain plug (arrow) from
bottom of radiator.
WARNING-
Use extreme caution when draining and disposing of engine
coolant Coolant is poisonous andlethal to humans andpets.
Pets are attracted to coolant because of its sweet smell and
taste. Seek medical attention immediately if coolant is ingest-
ed.
NOTE-
Catch and dispose of drained coolant according to local,
state, and federal laws.

Downloaded from www.Manualslib.com manuals search engine
110-12
Engine Removal and Installation
4 Remove hoses from thermostat housing by releasing locks
(arrows). If applicable, detach electrical harness connector
for thermostat housing.
NOTE-
Two different types of hose fasteners are used on the E39
car; lock clamp type as shown above or standard band
clamps.
- On vehicles equipped with mechanical cooling fan: Remove
belt-driven cooling fan and radiator as described in
170 Ra-
diator and Cooling
System.
CAUTION-
32 mm radiator fan mounting nut has left hand threads.
4 Disconnect coolant hose (arrow) at rear left side of engine
above starter.
4 Disconnect coolant hose (arrow) at front left side of engine
mount.
- Unbolt power steering fluid reservoir and pull aside without
detaching hoses. Secure to fender with cord or stiff wire.

Downloaded from www.Manualslib.com manuals search engine
I Engine Removal and Installation
WARNING -
Use extreme caution when draining and disposing of engine
coolant. Coolant is poisonous andlethal to humans andpets.
Pets are attracted to coolant because of its sweet smell and
taste. Seek medical attention immediately if coolant is ingest-
---
Working at rear of intake manifold:
Disconnect brake booster vacuum line (A).
Disconnect fuel tank vent line
(6).
Disconnect hoses (C and D) at coolant manifold
- Remove transmission harness support (E).
- Remove oil filter housing assembly from fender:
- Remove oil filter housing mounting fasteners.
Use stiff wire to secure oil filter housing to engine.
NOTE-
Do not disconnect oil lines from filter housing.
4 Disconnect supply and return fuel lines (where applicable) at
or near fuel rail. Plug open fuel lines.
NOTE-
BMW uses three styles of fuel line connections; a slngle use
clamp, a locking fitting that uses special tool
16 7 050 to re-
lease, and a
quiclc release sleeve (arrows) that disconnects
the line when depressed.
WARNING-
Fuel In fuel line is under pressure (approx. 3 - 5 bar or45 -
75 psi) and may be expelled. Do not smoke or worlc near
heaters or other fire hazards. Keep a fire extinguisher
handy. Before disconnecting fuel hoses, wrap a cloth
around fuel hoses to absorb any lealcing fuel. Catch and
dispose of escaped fuel. Plug all open fuel lines.
. Always unscrew the fuel tank cap to release pressure
in the tank before worlcing on the tank or lines.
< Remove air filter housing and mass air flow sensor:
Disconnect mass air flow sensor (A) and
intalte air temper-
ature sensor
(6) electrical harness connectors.
. Remove air filter housing mounting fastener (arrow).
Loosen intake hose clamp (C).
M62 engine: Remove hose at idle air stabilizer.
Remove air filter housing with mass air flow sensor.
Remove intalte hose from throttle body.