BMW M52tu-M54 DISA Housing O-rings

The O-rings on the BMW DISA valve housings are common failure items. O-ring failure can cause lean engine service codes, and poor idle quality. German Auto Solutions offers three grades of replacement O-rings for the DISA valves on BMW M52tu and M54 engines.

Note - The O-ring on the M52tu DISA valve is a simple replacement item. The factory O-ring on the M54 DISA valve is molded into the housing, which means that the factory seal needs to be scraped out in order to install our replacement O-ring.

Instructions for replacement of the M54 DISA O-ring can be found here.

DISA Housing Silicone Replacement O-Ring.

Silicone has excellent resistance to temperature extremes, very good oil resistance, fair fuel resistance and very good compression set resistance. This is equivalent to OEM seal. Both Silicone and Fluorosilicone have a low abrasion resistance and could tear when removing the DISA again later.

Price $3.71

DISA Housing Viton Replacement O-Ring.

Viton is not as good with extreme temperatures as silicone, but has good resistance to compression set, and excellent resistance to both fuel and oil. It is also a little harder than silicone which makes the DISA housing a little more difficult to install back into the intake manifold. I does have good abrasion resistance so if you think you may be taking your DISA in and out for some reason this would be the best choice.

Price $4.97

DISA Housing Fluorosilicone Replacement O-Ring.

Our Fluorosilicone O-ring is a military spec, aerospace grade product. It's a little pricey, but has excellent temperature extreme and compression set properties, plus excellent resistance to fuel and oil. Both Silicone and Fluorosilicone have a low abrasion resistance and could tear when removing the DISA again later.

Price $9.25

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German Auto Solutions DISA Housing O-Rings

These O-rings fit DISA valve housings on BMW vehicles equipped with M54 engines only.

BEFORE YOU PURCHASE MAKE SURE YOU HAVE:

Price: $3.71 - $9.25