1998 BMW 740iL M62B44TU/M73B54 (E38)

E38 / Sedan / Global (Europe, North America, Asia including Japan)

M62B44TUM73B54Fiche exacte année/versionSilver

Engine identity

Engine code

M62B44TU, M73B54

Engine summary

The 1998 BMW 740iL was offered primarily with the updated M62B44TU 4.4L V8 engine producing approximately 282 hp and 450 Nm of torque. Additionally, the US and certain other markets offered the larger M73B54 5.4L V12 engine with around 326 hp and 490 Nm torque. Both engines used a multipoint fuel injection system with VANOS variable valve timing (on M62TU).

Displacement

4398 cc (M62B44TU), 5397 cc (M73B54)

Power

282 hp @ 5900 rpm (M62B44TU), 326 hp @ 5300 rpm (M73B54)

Torque

450 Nm @ 3900 rpm (M62B44TU), 490 Nm @ 3900 rpm (M73B54)

Fuel system

Electronic multipoint fuel injection

Timing drive

Chain-driven double VANOS variable valve timing on M62B44TU; conventional timing on M73B54

Port OBD

Verify by VIN and market

Oils and fluids

Type d’huile

BMW Longlife grade 5W-30 or equivalent synthetic oil meeting BMW LL-98

Capacité d’huile

Approximately 7.5 liters service fill including filter (M62B44TU); 9.0 liters service fill including filter (M73B54)

Liquide de refroidissement

13 liters

Fluide

Automatic transmission fluid type Dexron III or BMW ATF type specified per market

Differential fluid

Hypoid gear oil, typically SAE 75W-90 GL-5

Liquide de frein

DOT4 brake fluid, changed every 2 years recommended

Service and parts data

Manual transmission

Not available for this model/year

Automatic transmission

5-speed automatic (ZF 5HP-24 for V8, GM 4L80-E for V12 in some markets)

Spark plugs

Bosch IR platinum tipped or equivalent

Service interval

15,000 km or 1 year, whichever comes first; oil changes may be more frequent in severe conditions

Dimensions des pneus

Front 225/55 ZR16, Rear 255/50 ZR16

Couple de roue

Verify by VIN and market

Common and chronic problems

VANOS system failure (M62B44TU)
Cooling system leaks
Electrical issues with early CAN bus components

First checks

Inspect VANOS unit operation on V8 engines
Check cooling system for leaks
Verify automatic transmission fluid condition

Avant de remplacer des pièces

Save fault codes and freeze-frame data before clearing anything.
Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.

Important notes

Varying engine options by market: M62B44TU common in Europe/Asia; M73 V12 mainly in North America and selected markets
No manual transmission offered in the 740iL for 1998 globally

Codes courants

Source and verification notes

BMW factory technical documentation E38 model year 1998
European and North American market specification sheets archived from BMW official dealer manuals

Outils compatibles

Verify by VIN and market

Questions fréquentes

What engine code does the 1998 BMW 740iL M62B44TU/M73B54 (E38) use? 1998 BMW 740iL M62B44TU/M73B54 (E38) is listed here with engine code M62B44TU, M73B54; engine summary: The 1998 BMW 740iL was offered primarily with the updated M62B44TU 4.4L V8 engine producing approximately 282 hp and 450 Nm of torque. Additionally, the US and certain other markets offered the larger M73B54 5.4L V12 engine with around 326 hp and 490 Nm torque. Both engines used a multipoint fuel injection system with VANOS variable valve timing (on M62TU)..
What oil and capacity does the 1998 BMW 740iL M62B44TU/M73B54 (E38) use? 1998 BMW 740iL M62B44TU/M73B54 (E38) is listed with BMW Longlife grade 5W-30 or equivalent synthetic oil meeting BMW LL-98 and oil capacity Approximately 7.5 liters service fill including filter (M62B44TU); 9.0 liters service fill including filter (M73B54). Confirm market and engine option before service.
What are common 1998 BMW 740iL M62B44TU/M73B54 (E38) problems? Highlighted checks for 1998 BMW 740iL M62B44TU/M73B54 (E38): VANOS system failure (M62B44TU), Cooling system leaks, Electrical issues with early CAN bus components.

Engine identity

Engine code

M62B44TU, M73B54

Engine summary

Displacement

4398 cc (M62B44TU), 5397 cc (M73B54)

Power

282 hp @ 5900 rpm (M62B44TU), 326 hp @ 5300 rpm (M73B54)

Torque

450 Nm @ 3900 rpm (M62B44TU), 490 Nm @ 3900 rpm (M73B54)

Fuel system

Electronic multipoint fuel injection

Timing drive

Chain-driven double VANOS variable valve timing on M62B44TU; conventional timing on M73B54

Port OBD

Verify by VIN and market

Oils and fluids

Type d’huile

BMW Longlife grade 5W-30 or equivalent synthetic oil meeting BMW LL-98

Capacité d’huile

Approximately 7.5 liters service fill including filter (M62B44TU); 9.0 liters service fill including filter (M73B54)

Liquide de refroidissement

13 liters

Fluide

Automatic transmission fluid type Dexron III or BMW ATF type specified per market

Differential fluid

Hypoid gear oil, typically SAE 75W-90 GL-5

Liquide de frein

DOT4 brake fluid, changed every 2 years recommended

Service and parts data

Manual transmission

Not available for this model/year

Automatic transmission

5-speed automatic (ZF 5HP-24 for V8, GM 4L80-E for V12 in some markets)

Spark plugs

Bosch IR platinum tipped or equivalent

Service interval

15,000 km or 1 year, whichever comes first; oil changes may be more frequent in severe conditions

Dimensions des pneus

Front 225/55 ZR16, Rear 255/50 ZR16

Couple de roue

Verify by VIN and market

Questions fréquentes

What engine code does the 1998 BMW 740iL M62B44TU/M73B54 (E38) use? 1998 BMW 740iL M62B44TU/M73B54 (E38) is listed here with engine code M62B44TU, M73B54; engine summary: The 1998 BMW 740iL was offered primarily with the updated M62B44TU 4.4L V8 engine producing approximately 282 hp and 450 Nm of torque. Additionally, the US and certain other markets offered the larger M73B54 5.4L V12 engine with around 326 hp and 490 Nm torque. Both engines used a multipoint fuel injection system with VANOS variable valve timing (on M62TU)..

What oil and capacity does the 1998 BMW 740iL M62B44TU/M73B54 (E38) use? 1998 BMW 740iL M62B44TU/M73B54 (E38) is listed with BMW Longlife grade 5W-30 or equivalent synthetic oil meeting BMW LL-98 and oil capacity Approximately 7.5 liters service fill including filter (M62B44TU); 9.0 liters service fill including filter (M73B54). Confirm market and engine option before service.

What are common 1998 BMW 740iL M62B44TU/M73B54 (E38) problems? Highlighted checks for 1998 BMW 740iL M62B44TU/M73B54 (E38): VANOS system failure (M62B44TU), Cooling system leaks, Electrical issues with early CAN bus components.

1998 BMW 740iL M62B44TU/M73B54 (E38)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

First checks

Avant de remplacer des pièces

Important notes

Scanning Engine...

1998 BMW 740iL M62B44TU/M73B54 (E38)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

First checks

Avant de remplacer des pièces

Important notes