Question about 1999 BMW 323 Series

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BMW 323 bell housing water leak

Hi I have a 1996 BMW 323 that has a water leak that i am having problems locating. It appears to be coming from the drivers side where the exhaust manifold downpipe connects to the mid section of the box. The head is dry and the pipes do not appear to be perished or leaking. It looks like it is coming from a bolt that connects to thebell housing. Any suggestions?

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Water pump is in that area

Posted on Sep 11, 2008


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1 Answer

Location of engine number identification?

I am not 100% positive on your engine, but most later BMWs put the engine serial number on the back side of the head and/or the ledge of the bell-housing on a decal/sticker. These are usually very hard to see, and will require a mirror at the least. It may be easier to just call the dealership with your VIN and ask for the serial number.

Hope this helps,

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Where are the freezeplugs located on a lincoln towncar 1996

According to Haynes Manual, for a 4.6 OHC motor, the Freeze plugs are located about 3-4 inches below the cylinder head, under the exhaust manifold. The back plug is 5-6 inches in front of the bell housing on the block. They are pictured on page 2C-21 of the Manual in section 15 Engine Block Cleaning..

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Water leaking behind moter and i cant see were its coming from

If you have antifreeze leaking from what appears to be coming from the transmission bell housing, the leak is most likely (although possible) not at the rear of the engine.

There COULD be a freeze plug at the back side of the engine between the engine and transmission leaking. However, on the 4.6L engines, it is most commonly caused by either a water pump, heater hose, or intake manifold leaking at the FRONT of the engine.

Leaks in these areas will fill the area between the cylinder heads with coolant, which will run to the back of the engine and out the hole in the cylinder block that is located just above the transmission bell housing. This makes it LOOK like the leak is in the rear.

To verify this condition use a flashlight to look under the intake manifold just past the alternator. Sometimes it is also very helpful to remove the serpentine belt and remove the alternator (very easy to do) to verify that this is the problem.

Take a hard look at the coolant cross-over pipe on the front of the intake manifold assembly. These are notorious for leaking on both sides and VERY LIKELY to be leaking on the driver's side where the thermostat is located.

This problem is so common that an aftermarket company named DORMAN has come up with an aftermarket replacement intake manifold to correct the problem. The DORMAN part number for your vehicle is Part Number: 615-175 It is available at many aftermarket parts suppliers including AutoZone, O'Reilly's, and Advance, for around $230 (USD). (See picture below)


Nov 24, 2011 | 2001 Mercury Grand Marquis

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BMW 323, 96 sigma alarm wont set

Verify the switch that monitors the hood.

Jul 14, 2009 | 1996 BMW 318

2 Answers


First, is the overflow bottle filled to the line where it is supposed to be???

Second, need to check that the thermostat isn't stuck shut... follow the big hose from the radiator to the thermostat housing, it should look like this..

remove the hoses, loosen the bolts on the bottom of the housing...remove it and you should see the thermostat.. it will look like this

Take it inside you house, put it in a pan with water covering it, put it on the stove over medium heat...add salt and pepper to taste... errrr I mean... just watch it as the water heats up, and see if it opens, if not replace it with a new one.

even if it opens, try putting the thermostat housing back on the car without the thermostat...hook the hoses up and and start the car, let it run and see if it still over heats, if so...maybe buy some radiator flush and use it per instructions on the bottle.

Also, make sure you are using coolant and not water... most people think coolant is so it won't freeze...and thats wrong, coolant will not freeze...however, it also won't get as hot as water does or as fast.

If none of that works... could be the water pump, most have a seep hole so they start leaking when they are going bad...notice any water dripping under the car anywhere?

Othyer than that, could be a blown head gasket, or a number of other things making the car run hot.... check everything in the order I showed.. it starts at the cheapest fix.

Good Luck!!

Jul 10, 2009 | 1999 BMW 318 ti

2 Answers

Mazda 323 automatic

It sounds like you need to service the transmission,new filter and fluid should clear up this problem.

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2 Answers

Water coming from bell housing.

If you are ABSOLUTLY POSITIVE this is where the Coolant is coming from the ONLY Sorce is Freeze plugs ,There are Usualy 2 Behind the Flywheel. Sorry For the BAD NEWS but this IS the only thing that can Leak Out of the Bell Housing, Transmissiou Must Come Out and Flywheel also, Once The Flywheel is OUT you will see the FREEZE PLUGS. Good Luck !! Please RATE ME !!!!!!!!!!!!

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Not getting heat into the car 323i bmw 1997 touring

Thermostat , ITS ABOUT $60 CHANGE IT :)

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Bmw compact e36 leak.

hi i have the same problem the car have a water lick but i now what is the problem if you car have the sunroof the water come from ther tell you mechanic to put the car into the car wash end i going to see the water come from the sunroof the sunroof have 4 liter house en 4 corners on the car thats way the you car have water behind the driver seat

May 16, 2008 | 1996 BMW 318

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