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: 140,970 (11,300–361,800)
9 model years affected: 1993, 1994, 1995, 1996, more1997, 1998, 1999, 2000, 2001
26 people reported this problem
14 people shared problem details
2000 BMW 740iL122,000
coolant level is going down,,but it's not Leaking on the ground..it just started..very odd..
14 people like thisFlag inappropiate
leak in cooling system. Hard to find. Continual smell of coolant. $5,000 later
6 people like thisFlag inappropiate
1999 BMW 740iL136,000
Coolant leak in Cooling Valve Aux Pump.
4 people like thisFlag inappropiate
1998 BMW 740iL90,100
Coolant leak. Looking for leak and seems to be between firewall and rear of motor.
3 people like thisFlag inappropiate
2000 BMW 740iL132,679
Antifreeze leaking between the engine and firewall
2 people like thisFlag inappropiate
have had the BMW dealership replace everything but the radiator. Is there a recall on this problem with my BMW
2 people like thisFlag inappropiate
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
1 person likes thisFlag inappropiate
2001 BMW 740iL100,650
cooling leak rear hose between motor an fire wall
1 person likes thisFlag inappropiate
when i turn heat on i smell coolant i dont see any leaks but goes somewhere into a pan
1 person likes thisFlag inappropiate
2000 BMW 740iL120,000
Purchased used 2000 740 iL. Ended up with numerous collant leaks and electrical problems.
1998 BMW 740iL160,000
low coolant level
1993 BMW 740iL11,300
check coolent light kept going on .now coolent has all leaked out on my driveway and check engine light is on/
1997 BMW 740iL170,000
unit was woring and suddenly shut off, button for ac doesnt light up and recirculating air also ceased to function
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.
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