Transport CanadaHigh Risk
1997 AUDI A6Transport Canada Recall #1999095
The official notice
Defect
On certain vehicles, a control valve in the vacuum hose connecting the brake booster to the intake manifold may not open or close fully at temperatures below -4 degrees F. This condition could cause insufficient vacuum to be provided to the brake booster resulting in possible loss of power brake assist.
Safety Risk
No risk description available.
Remedy
A vacuum by-pass system will be installed on affected vehicles.
9,000 vehicles affectedMfr ref: UH/KUUpdated June 10, 2026