Bmw E46 Water Pump Leak

Guage but when i got back i noticed coolant leaking just behind the water pump 1st picture.

Bmw e46 water pump leak. If the leaking fluid is light green or light blue and leaking by your front tires this is likely the cause. Discussion starter 1 jun 23 2016 edited. Tough to see the leak by just taking a quick glance. New water pump leaking through weep hole.

1999 bmw 328i 5 speed 250 000 miles. Note as mentioned by other members although autozone checks your codes for free they use a generic obdii tool that does not have the bmw specific fault codes. The water can freeze and expand causing the plastic of the reservoir to crack. If you do not find the leak warm the engine with the pressure tester installed.

A forum community dedicated to bmw owners and enthusiasts. What fluid is leaking from my bmw. E46 models develop coolant leaks toward the front of the engine in places like the radiator outlet sensor water pump and thermostat. Inspect the leak thoroughly and determine if it is coming from the thermostat or waterpump before replacing.

Two hard plastic hoses with time become brittle and fall apart causes rapid l. Joined may 13 2016 48 posts. Come join the discussion about bimmerfest. Jump to latest follow 1 6 of 6 posts.

Usually the first signs of water pump failure in your e46 are coolant leaks and whining sounds from the pulley. They usually leak from the bottom onto the water pump which can make you think the water pump is leaking. Coolant leak underneath intake manifold. I have seen this problem cause a water leak many times on all different bmw models including e46 3 series e39 5 series and e38 7 series as well as newer mo.

Start your testing with a cool engine. Like all mechanical parts the bmw e46 water pump has a limited life span and should be replaced at the first signs of wear or after an extended time in use. I broke one of the shafts holding the water pump used rtv on that side and 50 000 miles later no leaks. Therefore bimmer owners should check their bmw water pump for failure as soon as they suspect a problem.

That means there s a fluid leak. Here are 5 signals that a bmw water pump failure is imminent. A very common leak on e46 s. If the fluid leaking onto the paper isn t clear it s not water.

E46 1999 2006 leaking water pump. If you notice leaking liquid coming from the front part of your car you should always pay attention to it as it may be a symptom of problems yet to come.