BMW 525i, 528i, 530i, 540i, Sedan, Sport Wagon (E39, 5 Series) Repair Manual 1997-2003
This 2-volume repair manual set by Bentley, covers 1997-2003 BMW 5 Series (E39) Sedan, and Sport Wagon models, including:
BMW 525i
BMW 528i
BMW 530i
BMW 540i
Comprehensive enough for professional BMW mechanics, the manual is intended for serious BMW do-it-yourself owners who want to understand, maintain, service and repair their E39 5 Series automobiles.
VOLUME ONE: General Maintenance | Engine | Transmission | Suspension, Steering and Brakes | Body | Equipment and Accessories
VOLUME TWO: Electrical System | Electrical Wiring Diagrams
Engines covered:
6-cylinder engines: M52 | M52 TU | M54
V-8 engines: M62 | M62 TU
Fuel injection systems covered:
Bosch M 5.2 | Bosch M 5.2.1 | Bosch ME 7.2 | Siemens MS 41.0 | Siemens MS 42.0 | Siemens MS 43
Book Excerpt: 1997-2003 BMW 525i, 528i, 530i, 540i E39 Repair Manual
FUEL INJECTION
ENGINE COOLANT TEMPERATURE (ECT) SENSOR, TESTING AND REPLACING
The ECT sensor is located below cylinder 6 intake port at the rear of the engine (see diagram 1).
The ECT sensor is a dual temperature sensor. One circuit provides coolant temperature information to the ECM while the other circuit provides coolant temperature information to the instrument cluster.
The ECM determines the correct ignition timing and air/fuel mixture required for the engine temperature by monitoring an applied voltage (5 vdc) to the sensor. The voltage drop across the sensor varies as the coolant temperature (sensor resistance) changes.
NOTE: The ECT sensor is an NTC (negative temperature coefficient) type sensor. In other words, as the temperature rises, resistance through the sensor decreases.
If the ETC sensor input is faulty or non-plausible, the MIL is illuminated when OBD II fault criteria are exceeded. The ECM assumes a substitute value (80 degrees C/ 176 degrees F) to maintain engine operation. The ignition timing is set to a conservative/safe basic setting.
Remove intake manifold to access ECT sensor on the M52 TU and the M54 engines. See 113 Cylinder Head Removal and Installation
Check ECT sensor resistance using a multimeter at sensor terminals
TRUNK LID, TAILGATE
TRUNK LID ADJUSTING
Truck lid must be parallel to both side panels and should be mounted flush with body side panels (see arrows). Lid fit tolerance is +/- 1mm (0.04 in).
Raise trunk lid and support in open position.
Turn trunk lid detent buffers in (see photo).
Remove trunk strut retaining clip (see arrow) and disconnect struts.
WARNING! Make sure to support trunk lid before removing struts.
Loosen bolts at left and right trunk hinges fasteners (see arrows) to point where lid can be moved.
Remove plastic cover from lower trunk lock. Loosen lock bolts (see arrows) until lock assembly can be moved.
CAUTION! Before locking trunk lid, check that trunk lid is not able to damage the body or rear window.
Carefully close trunk lid and check side gaps (see arrows). Minimum gap is 0.5 mm (0.02 in).
Adjust to fit side body panels.
Open trunk lid. Be careful not to alter adjustments.
Pages: 2072 (2 manuals) - Over 2500 b&w photos and illustrations
Binding: Hardcover - 8.25 x 11 inches
ISBN: 978-0-8376-1672-8
Above: Brian Hampton's 2002 BMW E39 (5 Series) M5. Very clean, stock, black/carbon fiber, with every available option (except rear park assist). 27K miles. Brian is a member of the Peachtree Chapter of the BMWCCA. Newnan, GA.
