Multiple Parts May be Recommended to Correct Coolant Loss on BMW 740iL

Leaks are known to develop in the cooling system. It is common to see more than one part recommended for repair/replacement due to overlapping labor and the use of many plastic parts in the system.

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Average mileage: 146,596 (11,300–361,800)
9 model years affected: 1993, 1994, 1995, 1996, more1997, 1998, 1999, 2000, 2001
31 people reported this problem
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Viewing 1 - 18 of 18 problem details
2000 BMW 740iL 122,000 mi,
coolant level is going down,,but it's not Leaking on the just started..very odd..
1998 BMW 740iL 90,100 mi,
Coolant leak. Looking for leak and seems to be between firewall and rear of motor.
leak in cooling system. Hard to find. Continual smell of coolant. $5,000 later
2000 BMW 740iL 132,679 mi,
Antifreeze leaking between the engine and firewall
2001 BMW 740iL 100,650 mi,
cooling leak rear hose between motor an fire wall
have had the BMW dealership replace everything but the radiator. Is there a recall on this problem with my BMW
The glycol leak is coming from the area where the PLASTIC overflow bottle is fastened with all plastic fasteners (joke) !!! I need some advise please!! Thank you
1999 BMW 740iL 136,000 mi,
Coolant leak in Cooling Valve Aux Pump.
when i turn heat on i smell coolant i dont see any leaks but goes somewhere into a pan
1998 BMW 740iL 175,000 mi,
Coolant leaks but not visible now coolant just poured out at stop smoked and hissing sound
1993 BMW 740iL 11,300 mi,
check coolent light kept going on .now coolent has all leaked out on my driveway and check engine light is on/
Smoke started coming out of the tailpipe and the mechanic at Big A Service Center said it was due to an anti-freeze leak in the water pump. The AF goes to the pipes and that causes the white smoke.
2001 BMW 740iL 98,000 mi,
filler cap was replaced but it continued to loose coolant, engine runs smooth
Leaking from Engine coming Green Color bottom of the engine , Fan Belt Sound & Sound From Engine
1997 BMW 740iL 170,000 mi,
unit was woring and suddenly shut off, button for ac doesnt light up and recirculating air also ceased to function
2000 BMW 740iL 120,000 mi,
Not fixed. "Air Breather" on top right of radiator leaks. The following failures have occurred since purchased new in 1999. Water pump. Alternator. Drive shaft U-joint. (not replaceable). Windshield motor. Rear springs. Two window drive systems. Leaky valve gaskets. GPS system failed.
2000 BMW 740iL 120,000 mi,
Purchased used 2000 740 iL. Ended up with numerous collant leaks and electrical problems.
1998 BMW 740iL 160,000 mi,
low coolant level