Do not reuse the original temp sensor as it will leak on the new hose. The radiator needed replacing and appears to be a common maintenance item. It can be viewed using an inspection mirror. Much of the later E60 cooling system is strong and reliable compared to the previous generation 5-series models. Remember to properly clean any coolant that gets on the ground and properly dispose of it.
There are two drains marked with red knobs so if you're flushing the system make sure you drain both sections. Additional parts will be determined once leak is found. The upper radiator hose goes from the top of the radiator to the thermostat housing and comprises several branch hoses that go to other ancillary devices. This pipe connects the water pump to the valley pan and it's a compression fitting no o-rings. But when the pump fails it's an immediate shut down of the engine which can be a major inconvenience and lead to additional repairs that might have been avoided with preventative maintance.
These are already vital to the health and durability of the N54 engine. Not only must it provide cooling for the engine, but it's also pumping fluid used to cool the turbocharger oil and transmission oil. To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. When leaving a comment, please leave your vehicle information. A cooling system pressure tester is used to pressurize a cooling system and hold it at a specified pressure while looking for leaks.
Drove the last 6 miles under 2000rpm as if I were in limp mode. If it is just because you short filled the system after a drain it will not have a big effect on operation. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. I pulled the bottom cover off and can't seem to locate the source. But there is still the potential for serious cooling system and engine-related failures.
Imagine lowering cooling pressure from 200 to 120??? But there is still the potential for serious cooling system and engine-related failures. A failure in the cooling system can lead to overheating and catastrophic engine failure. Did you know running hot will destroy all rubber gaskets and other rubber parts? Whenever the water pump or valley pan are replaced this tube should also be replaced. Please report any submissions that violate our rules. No its not a head gasket problem! But does anyone have an idea about where I should start looking in this area? We recommend a new expansion tank cap. The lower section of my radiator was starting to rot and covered with leaves. When doing any sort of repair or maintenance there is no replacement for genuine factory parts.
Look for leaks at and around all the components listed above. One note about the lower radiator hose: when ordering a new hose you must order a new temp sensor. The radiator is specific to manual transmission models. There are a lot of hoses on the N52 engine. Not all of them need to be replaced during an overhaul but it would be a good idea.
Use the diagram on the right to see where each is connected in the engine bay. These cars do not respond well to overheating, so best have the issue checked out as I was lucky. Don't wait until it's too late! This fitting is pretty good but old spring clips don't have the tension of new clips. Thanks It could be a few things to be honest, but without taking the acoustic cover off, you will going at it a bit blind. We only offer parts we know you can trust to perform! New hoses are not strictly necessary and if one does spring a leak later you can always replace just that one hose. Evening guys, I have had quite a bad coolant leak for the last couple of days. It's not uncommon for them to last over 100,000 miles but planning a preventative replacement will save you a lot of hassle later on.
And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. This hose connects the thermostat housing to the lower right side of the radiator. N54 engine diagram online wiring diagram n54 engine diagram wiring diagram z4 n54 engine oil diagram n54 engine diagram. I would pressure test the system to locate exact spot of leak. When looking for leaks at the radiator, inspect the side tanks on the radiator for signs of leaks or fresh coolant. Several of the primary cooling components are prone to failure within 80k miles or less in many cases. Through extensive research we found that the seal bonded to the coolant pipe inside the engine fails.