BMW DISA O-Ring
                                                 (FREE SHIPPING)

 If you have a failed or failing DISA valve O-Ring, air leaks into the intake and
causes your vehicle to idle rough or misfire. You can spend $200 to $300 for
the complete valve at your dealer or spend less than $4 and 15 minutes
in your garage.
This is the O-ring between the intake manifold and the DISA (Differential Intake System Adjuster) valve.

(DISA controls the length of the intake manifold runners at different engine rpm.)

Genuine Viton Core O-Ring meets or exceeds the OEM
specifications. Dupont specifically made Viton for automobile and airplane
engines.

All O-Rings are brand new.

Fits DISA valves for the following models:

E39-525i 530i 
E46-320i 325i 325Ci 325xi 330i 330Ci 330xi   
E53-X5 3.0i
E60-525i, 530i;
E65-730i 
E66-730Li
E83-X3, 2.5i, 3.0i 
E85-Z4 2.5i 3.0i 
Z3-Z3 2.5i 3.0i