started with plastic pipe under manifold busted.overheated.replaced pipes,heater hoses,thermostat,radiator,top hose,bottom hose,expansion tank,water pump,thermostat on expansion tank,flushed system,new bmw blue antifreeze.had block test for combustion gas-was neg.,took to bmw dealership and was told head gasket.OK here is mystery- no oil in anitfreeze,no antifreeze in oil,no smoke at all,runs perfect,heat gauge stays at perfect 12 o'clock until it looses water.another mystery- ran perfect last night,coolant level light did not come on and had water in expansion tank but overheated.as soon as i took cap off today and vented at bleeder port water went down.apparently block was dry.i am not crazy yet but headed there.can it have a blown head gasket and still run as great as it does?? any info will be greatly appreciated.
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2000 BMW 323i Question: coolant loss,overheats
HOW MANY MILES ON CAR? POSS RADIATOR HAS BLOCKAGE?
Answer #2Cynthia_Lopez April 28, 2014, 22:31Rookie
I am writing to tell you about a new BREAKTHROUGH method for repairing a leaking Coolant Transfer Pipe in the BMW N62 V8 engine block using the BimmerFix Stint. The N62 V8 is a popular BMW engine that was used from 2002 thru 2010, in such fabulous vehicles as the BMW 735i, 740i, 745i, 750i & Li, 645Ci, 650i, 540i, 545i, 550i, and the X5 SUV.
Located deep inside of this BMW N62 engine is a Coolant Transfer Pipe, which carries antifreeze from the Water Pump to cooling chambers within the engine. However, the Front Seal on this Cooling Tube can fail in as little as 40,000 miles, and start leaking antifreeze from the engine block, through a weep hole in the Timing Chain Cover. When this happens, the car will lose antifreeze from the engine, and the engine will overheat.
In the past, this has been a very expensive repair because it required disassembly of the engine, in order to access the leaking Cooling Pipe Seal. The original method of replacing the crossover Coolant Transfer Pipe required the removal of the Timing Chain Cover. This repair could cost $6,000 or more at the BMW Dealer.
Then, an after-market Collapsible Coolant Pipe was developed to save time and money on this repair. This Collapsible Coolant Pipe method involves removing the Intake Manifold, cutting out the old Coolant Pipe and installing the after-market Collapsible Coolant Pipe. But even this method required many hours of shop labor and expensive parts and supplies. The repair bill for this method can still cost between $1,500.00 and $2,500.00 to remove the Intake Manifold, cut out the old Coolant Pipe and install the new Collapsible Coolant Pipe.
However, BimmerFix Products Co. has discovered a BREAKTHROUGH system to stop the leak! The BimmerFix method is much faster and less expensive than these old methods. This simple, yet durable and long lasting method inserts the BimmerFix Stint into the leaking crossover cooling tube, through the Timing Chain Cover. The thin aluminum sleeve creates a long lasting repair that is much easier and less expensive to install than the old repair methods.
The new BimmerFix Stint will stop the Coolant Pipe leak, and only requires the removal of the Water Pump. This new patent protected invention can save YOU or your customer’s time, hassle, and thousands of dollars. It works or your money back!
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BimmerFix Products Co.
Tucson, Arizona, USA