You can just go to autozone and get generic vacuum hose. Bring a piece of the broken on and show them the size. I asked for 3 inches of it and they gave it to me for free.
That hose is connected to the fuel filter. I would go to an auto parts store and buy a couple of feet and replace the segments that have disintegrated. The vacuum hose runs from the SAP check valve to the back of the intake at the Vacuum Control Valve on the passenger side of the engine. I'd also get under the car and check the front of the fuel filter where that hose connects to the filter. How do I know? I just replaced it all and my car is running well now.
That hose is connected to the fuel filter. I would go to an auto parts store and buy a couple of feet and replace the segments that have disintegrated. The vacuum hose runs from the SAP check valve to the back of the intake at the Vacuum Control Valve on the passenger side of the engine. I'd also get under the car and check the front of the fuel filter where that hose connects to the filter. How do I know? I just replaced it all and my car is running well now.
BMW part# 11727545323 (3.5mm x 1.8mm) and comes in 1 meter length. It's more than you need but keep it handy for the other vacuum hoses that are getting rotten.
There's the other end of that hose to the FPR, and the SAP connections (front and back) that use a similar hose (3.3mm x 1.75mm). No I don't think the .05mm (.0019in) will make a difference.
Thank you guys i just got a 3 feet long vacuum hose from my local autozone and the hose in the pic has been fixed.
I will look around to see if any other need a replacement.
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