CEL code 1188/1189: Inspect MAS boot and hoses to the Intake (pics inside). - BMW Forum - BimmerWerkz.com

3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Post CEL code 1188/1189: Inspect MAS boot and hoses to the Intake (pics inside).

I had error codes 1188 and 1189 keeping me from passing inspection.

After searching I found this is indicated as a possible vacuum leak.

Once I pulled the Airbox off I found part # 13541740159 was damaged.

This seems to be the hose from the MAS boot to the IAC.

New part is 12$ from the local dealer (which is closed today).


I should add, I used a 6mm 1/4 drive ratchet and some serious hand kung-fu to get this clamp loose.

I believe it ruptures from vibration/fatigue.
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