[2014F22]

Recently got a 2014 M235i used, wondering if this is an OFHG leak. I have 111,000km on the car.

Also wondering if I should also change the belt as well.

[jb-slow]

Looks like it, luckily it's a cheap gasket and is fairly easy to do.

[pikcachu]

Originally Posted by jb-slow

Looks like it, luckily it's a cheap gasket and is fairly easy to do.

Either the OFHG and/or the thermostat gasket were those oil coolant lines come from....might as well replace the thermostat and if you are at that high mileage the water pump while you are at it

easy?

You have to take the hole intake manifold so i wouldn't say it's easy...
Also you need to make sure coolant doesn't get into the oil lines and viceversa ....

On top of that before starting the engine your need to pull the fuel pump fuses and crank the car for like a minute to purge any air in the oil lines else you can end up seizing the engine...

[2014F22]

Originally Posted by pikcachu

Either the OFHG and/or the thermostat gasket were those oil coolant lines come from....might as well replace the thermostat and if you are at that high mileage the water pump while you are at it

easy?

You have to take the hole intake manifold so i wouldn't say it's easy...
Also you need to make sure coolant doesn't get into the oil lines and viceversa ....

On top of that before starting the engine your need to pull the fuel pump fuses and crank the car for like a minute to purge any air in the oil lines else you can end up seizing the engine...

Do you know how much the labor would be?

[pikcachu]

Originally Posted by 2014F22

Do you know how much the labor would be?

In the US the OFHG is around $900... the gasket itself is like $30 but labor is like 4-5 hours

[2014F22]

Originally Posted by pikcachu

Either the OFHG and/or the thermostat gasket were those oil coolant lines come from....might as well replace the thermostat and if you are at that high mileage the water pump while you are at it

easy?

You have to take the hole intake manifold so i wouldn't say it's easy...
Also you need to make sure coolant doesn't get into the oil lines and viceversa ....

On top of that before starting the engine your need to pull the fuel pump fuses and crank the car for like a minute to purge any air in the oil lines else you can end up seizing the engine...

Originally Posted by pikcachu

In the US the OFHG is around $900... the gasket itself is like $30 but labor is like 4-5 hours

Probably $1100+ CAD then, hopefully the 3 month warranty that came with the car covers it. Was expecting to replace this soon anyways.

[pikcachu]

Originally Posted by 2014F22

Probably $1100+ CAD then, hopefully the 3 month warranty that came with the car covers it.

It should... unless they consider it not leaking enough

[2014F22]

Originally Posted by pikcachu

It should... unless they consider it not leaking enough

Its through a Chevy dealership so I need to figure out how this is going to work

[designatedposter]

you don't have to completely remove the intake manifold, you can simply loosen it to get access to a specific bolt. an experienced shop should be able to do it in half the time pikachu quoted. you just have to find a shop that won't charge you 'book' time

[jb-slow]

Did mine in like 2 hours, piece of cake.

[2014F22]

Originally Posted by designatedposter

you don't have to completely remove the intake manifold, you can simply loosen it to get access to a specific bolt. an experienced shop should be able to do it in half the time pikachu quoted. you just have to find a shop that won't charge you 'book' time

Had a shop quote me $700CAD, dealership quoted $1300 CAD +$160 for oil change. Should I also change the belt, pulley, and tensioner?

[jb-slow]

Originally Posted by 2014F22

Had a shop quote me $700CAD, dealership quoted $1300 CAD +$160 for oil change. Should I also change the belt, pulley, and tensioner?

With that mileage I would change them too

[XutvJet]

Make sure to prime the oil pump before running the engine. These engines can be a bit wonky when it comes to servicing the oil pump, oil pan gasket, and OFHG. If the oil pump cavitates for a bit, the motor may spin a rod bearing. BMW has a TSB specifically noting to prime the oil pump when replacing the OFHG.

https://static.nhtsa.gov/odi/tsbs/20...51166-9999.pdf

[delvec03]

Originally Posted by XutvJet

Make sure to prime the oil pump before running the engine. These engines can be a bit wonky when it comes to servicing the oil pump, oil pan gasket, and OFHG. If the oil pump cavitates for a bit, the motor may spin a rod bearing. BMW has a TSB specifically noting to prime the oil pump when replacing the OFHG.

https://static.nhtsa.gov/odi/tsbs/20...51166-9999.pdf

So, I heard this was an issue on other engines other than n20. Maybe N54/55? This tsb is specifically for engine oil level measurement. Since you can't do that with a cold engine, you'd need to start it. If the level is too low. Ya screwed.

Doing the work on the ofhg during an oil change is no different than doing the oil change itself from the perspective of the oil system.

Now, could you do this to be extra safe? Sure. But it's not required.


References:
https://blog.fcpeuro.com/how-to-repl...ing-gasket-f30