Verified: 23 March 2026 07:25 am CET
Industry: Tier-1 Commercial Vehicle & Rail Braking Systems
Jurisdiction: Germany
Primary Regulator: Kraftfahrt-Bundesamt (KBA) for road vehicles; Eisenbahn-Bundesamt (EBA) for rail.
Important Safety Warning: Beware of fake customer service numbers on search engines. Only use official channels. Scammers frequently buy ads to promote fraudulent “heavy-duty mobile mechanic” phone numbers, sending unverified technicians to your location who demand exorbitant cash deposits upfront. Knorr-Bremse staff will never ask for your account password, or demand you pay a “warranty processing fee” via a generic payment link sent via SMS.
Level 1: Customer Support (Kundenservice)
- How to complain:
- For Broken Vehicle Components (e.g., Air Brakes, Compressors): Stop! If your truck or bus braking system fails, you must complain directly to your commercial vehicle dealership or the authorized mechanic who installed the part. Knorr-Bremse is not your legal contractual partner for the vehicle purchase.
- For B2B Clients & Direct Fleet Support: Contact the Knorr-Bremse central corporate switchboard at 089 / 3547 0 or email info@knorr-bremse.com (for commercial trucks: truckservices@knorr-bremse.com).
- Source Verification: Impressum - TruckServices - Knorr-Bremse
- Availability: The central corporate hotline operates Monday to Friday during standard business hours (CET).
- Timeline: B2B claim resolution timelines are dictated by international commercial law and specific fleet supply contracts, rather than standard 14-day consumer timelines.
Level 2: Formal Written Complaint & Mahnung
- Who to contact: Formally escalate a direct commercial dispute by sending a registered letter with return receipt (Einschreiben mit Rückschein) to their legally registered headquarters. Address it to the Management Board of the specific subsidiary:
- For Commercial Trucks/Buses: Knorr-Bremse Systeme für Nutzfahrzeuge GmbH, Moosacher Str. 80, 80809 München, Germany.
- For Rail/Trains: Knorr-Bremse Systeme für Schienenfahrzeuge GmbH, Moosacher Str. 80, 80809 München, Germany.
- Source Verification: Impressum - Knorr-Bremse AG
- Timeline: A legally binding deadline of 14 days (set via your Mahnung) provides the company a strict timeframe to resolve the issue before they legally default (in Verzug geraten).
Level 3: Regulatory Authority / ADR
- Authority: The correct ombudsman depends entirely on who your dispute is with:
- Dealership/Mechanic Disputes: If an authorized garage installed the Knorr-Bremse part incorrectly or refuses to honor a warranty, submit your case to the local Kfz-Schiedsstelle (Motor Vehicle Arbitration Board).
- Knorr-Bremse (Manufacturer): Knorr-Bremse explicitly refuses to participate in voluntary consumer arbitration boards like the Universalschlichtungsstelle.
- Safety Recalls: Report severe, widespread component defects directly to the Kraftfahrt-Bundesamt (KBA) for trucks, or the Eisenbahn-Bundesamt (EBA) for trains.
- Source Verification: Kfz-Schiedsstellen - ZDK
Level 4: Legal Action
- Pre-Litigation: Before initiating formal court proceedings, seek case-specific legal assistance from a specialized contract or transport lawyer (Transportrechtsanwalt).
- Court/Arbitration: Critical Legal Trap: End-users attempting to sue Knorr-Bremse directly for a broken air compressor will have their lawsuit dismissed by German civil courts due to a lack of privity of contract (Vertragsrelativität). End-users must sue their seller/dealership. Commercial B2B disputes against Knorr-Bremse are typically handled via private commercial arbitration or the competent Regional Court (Landgericht München).
Community Action: Is your truck dealership refusing to honor their Sachmängelhaftung for a failing Knorr-Bremse EBS module, or is a commercial parts retailer ignoring your claim for a defective compressor? Reply below (do not share your passwords, full VIN numbers, or PINs), and our community will point you to the right legal templates!