BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) - View Single Post - Is it a boost leak or just a bad boost solenoid?

juld0zer · 05-23-2017, 02:01 AM

That is correct, the vacuum builds up inside the reservoir tanks. The solenoid valves' atmo port allows the vacuum to be bled off to reduce or stabilise boost

05-23-2017, 02:01 AM	#21
juld0zer Lieutenant Colonel 486 Rep 1,600 Posts Drives: Prev 135i 7DCT, Now 130i 6sp Join Date: Jul 2016 Location: 2153 iTrader: (0)	That is correct, the vacuum builds up inside the reservoir tanks. The solenoid valves' atmo port allows the vacuum to be bled off to reduce or stabilise boost
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