Bimmerchop69

this is a common problem with the high mileage 545's. Just throwing that out there.

evo42

Understood. I was looking for a solution rather than confirmation it happens.

I found the following link last week. It's specific to the code so I'm pretty sure this is it.
https://wiki.bentleypublishers.com/d...es+2004+-+2005

Having said that, the light has gone off. Same day I put gas in it. So it's either the CEL shutting off after a few cycles or it's potentially bad gas or maybe I needed a second try on the gas cap although it's hard to screw that up.

dawid_w

This is exactly what I was talking about. Y-pipe is cracked or one of the valves is bad...

The CEL will be coming and going. I had the same symptoms.

http://realoem.com/bmw/showparts.do?...81&hg=11&fg=50

evo42

I brought the car to an independent shop, they wanted to replace the pump and hoses, and valves as well as all the related gaskets for a total of $1502. I asked them to replace just the hoses, valves and the related gaskets which comes to $900. We'll see if that does it, I get the car back early next week.

They also noted that oil is 'pouring' out of the valve gasket covers. They want $2000 for that. I understand these motors do that but i'm not smelling anything nor do I have a puddle on the garage floor. If it's 'pouring' then I'd expect the belly pan to be holding 6qts of oil. I'll address this when I see a puddle/smell oil/have to add oil every other day.

ken545i

what hose?

dawid_w

Y-shape hose
part number 11727508270

Look at the link
RealOEM.com - Online BMW Parts Catalog

Number 1 on the picture

It could be also one of the valves #8
Valve 2x 11727553101

How many miles you have on your car?

ken545i

Got that already ..