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Old 01-12-2013, 05:06 PM
Bmwaudivwdude Bmwaudivwdude is offline
Big Mike Brown
Location: Atlanta, GA
Join Date: Dec 2009
Posts: 230
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Mein Auto: 09 BMW X5/11 Audi A5
Update to the DIY: Today I completed another expanding coolant pipe job. When I finished the job, I got a check engine light and increased emissions message, and after scanning the OBD on the car. I had a code for misfire on cylinder #8. I took the intake manifold back off to see if something got in between the gasket. While taking the fuel rail off, I found a O-ring missing on the # 8 cylinder. I replaced to O-ring, put the intake manifold back on and problem solved. One more thing to check before you put everything back together if you choose to remove the fuel rail. Hope this helps.

I have done this job 7 times on 545s, 645s and 745s. This was the first time I ran into this problem so, I thought I would post it to help some out.
11 Audi A5 2.0T 8 Spd Tripotronic w Sport Pkg, 19" Anthracite Wheels
12 VW CC 2.0T [/B] stock
05 VW GTI 1.8 T 5 Spd, Coilovers, Big Brakes,

(Previous rides)
04 BMW 645 CiC Auto
97 VW Jetta Jazz 5 SPD
06 Mazda 6 Grand Sport Auto
05 BMW X5 3.0 6 SPD
05 Infiniti G35 6 SPD
04 Volvo S60 "R" 6 SPD
99 Nissan Maxima 5 SPD
91 Nissan 300ZX 5 SPD
92 Honda Prelude Si Auto
76 Fiat Spyder 124 5 SPD