NHTSA Office of Defects Investigation
Recall Query RQ99-008: POWER BRAKE BOOSTER VACUUM BY-PASS
- Closed
NHTSA's Office of Defects Investigation opened Recall Query RQ99-008 on June 1, 1999 and closed it on November 14, 2000. NHTSA's investigations file lists the Audi A4 and Volkswagen Passat for it and links recall 99V131001 to it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- RQ99-008 (also written RQ99008)
- Investigation type
- Recall Query An investigation into whether an existing recall covers the right vehicles or whether its remedy works, run much like a Preliminary Evaluation.
- Status
- Closed November 14, 2000
- Opened
- Closed
- Vehicle or equipment manufacturer
- Volkswagen Group of America, Inc.
- Component
- Service Brakes, Hydraulic
- Recall linked by NHTSA
- 99V131001: VW/BRAKE BOOSTER, reported
- Vehicles and equipment
- Audi A4 and Volkswagen Passat
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Recall Query RQ99-008. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. Model years with a try.vin recall page link to that page's NHTSA investigations section.
Audi
All Audi recallsVolkswagen
All Volkswagen recallsWhat an NHTSA investigation is
NHTSA's Office of Defects Investigation (ODI) looks into possible safety defects in vehicles and equipment, often after owner complaints. An investigation usually starts as a Preliminary Evaluation, or as a Recall Query when it concerns whether an existing recall covers the right vehicles or fixes the problem, and ODI can upgrade it to a more detailed Engineering Analysis. A Defect Petition asks NHTSA to open an investigation, and Audit and Equipment Queries are administrative investigations into whether companies complied with federal vehicle safety requirements, such as reporting, recall and certification rules.
An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.
To see whether a specific vehicle has an open recall, enter its VIN at nhtsa.gov/recalls.
Free VIN check: decode a VIN to see its year, make and model.
Sources
NHTSA's investigation record for RQ99-008
Investigation details come from NHTSA's investigations file, which try.vin imports once a day. The investigation types are described from the U.S. Department of Transportation Inspector General's May 2023 report on NHTSA's Office of Defects Investigation, NHTSA's petition rules (49 CFR Parts 552 and 557) and NHTSA's Office of Defects Investigation procedures. How try.vin reads NHTSA investigations.