1998 bestellte die DB AG neben den vierzehn Einheiten für die Usedomer Bäderbahn (646.1) weitere dreißig Einheiten für den Regio-Bereich Brandenburg. Die Auslieferung der Züge war ab Mitte 1999 vorgesehen. Tatsächlich wurden die Züge erst im Jahre 2000 ausgeliefert, auf Grund verschiedener technischer Probleme erfolgte die Abnahme aber erst zwischen Mai 2000 und Frühjahr 2002. Die Triebwagen wurden als 646 001-030 bezeichnet, die beiden Steuerwagen mit den Fahrgasträumen als 946 001-030 bzw. 946 501-530. Die Wagen erhielten die übliche verkehrsrote DB Regio-Lackierung. Die Unterhaltung der Züge erfolgt von der Werkstatt in Neuruppin aus.
| Hersteller | Fabriknr. | Baujahr | Typ | urspr. Gattung | Bauart | Fahrzeugnr. | ||||
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| Bombardier | 519/001 | 2000 | GTW 2/6 | ABp | 2' | 946 001-5 |  |
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| Bombardier | 519/002 | 2000 | GTW 2/6 | ABp | 2' | 946 002-3 | |
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| Bombardier | 519/003 | 1999 | GTW 2/6 | ABp | 2' | 946 003-1 | |
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| Bombardier | 519/004 | 2000 | GTW 2/6 | ABp | 2' | 946 004-9 | |
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| Bombardier | 519/005 | 1999 | GTW 2/6 | ABp | 2' | 946 005-6 | |
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| Bombardier | 519/006 | 2000 | GTW 2/6 | ABp | 2' | 946 006-4 | |
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| Bombardier | 519/007 | 2000 | GTW 2/6 | ABp | 2' | 946 007-2 | |
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| Bombardier | 519/008 | 2000 | GTW 2/6 | ABp | 2' | 946 008-0 | |
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| Bombardier | 519/009 | 1999 | GTW 2/6 | ABp | 2' | 946 009-8 | |
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| Bombardier | 519/010 | 2000 | GTW 2/6 | 2' | 946 010-6 | |
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| Bombardier | 519/011 | 2000 | GTW 2/6 | 2' | 946 011-4 | |
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| Bombardier | 519/012 | 2000 | GTW 2/6 | 2' | 946 012-2 | |
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| Bombardier | 519/013 | 2000 | GTW 2/6 | 2' | 946 013-0 | |
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| Bombardier | 519/014 | 2000 | GTW 2/6 | 2' | 946 014-8 | |
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| Bombardier | 519/015 | 2000 | GTW 2/6 | ABp | 2' | 946 015-5 | |
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| Bombardier | 519/016 | 2000 | GTW 2/6 | 2' | 946 016-3 | |
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| Bombardier | 519/017 | 2000 | GTW 2/6 | 2' | 946 017-1 | |
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| Bombardier | 519/018 | 2000 | GTW 2/6 | 2' | 946 018-9 | |
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| Bombardier | 519/019 | 2000 | GTW 2/6 | 2' | 946 019-7 | |
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| Bombardier | 519/020 | 2000 | GTW 2/6 | ABp | 2' | 946 020-5 | |
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| Bombardier | 519/021 | 2000 | GTW 2/6 | 2' | 946 021-3 | |
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| Bombardier | 519/022 | 2000 | GTW 2/6 | ABp | 2' | 946 022-1 | |
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| Bombardier | 519/023 | 2000 | GTW 2/6 | 2' | 946 023-9 | |
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| Bombardier | 519/024 | 2000 | GTW 2/6 | 2' | 946 024-7 | |
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| Bombardier | 519/025 | 2000 | GTW 2/6 | 2' | 946 025-4 | |
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| Bombardier | 519/026 | 2000 | GTW 2/6 | ABp | 2' | 946 026-2 | |
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| Bombardier | 519/027 | 2000 | GTW 2/6 | 2' | 946 027-0 | |
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| Bombardier | 519/006 | 2000 | GTW 2/6 | ABp | 2' | 946 027-0 | |
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| Bombardier | 519/028 | 2000 | GTW 2/6 | 2' | 946 028-8 | |
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| Bombardier | 519/029 | 2000 | GTW 2/6 | 2' | 946 029-6 | |
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| Bombardier | 519/030 | 2000 | GTW 2/6 | 2' | 946 030-4 | |
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| Hersteller | Fabriknr. | Baujahr | Typ | urspr. Gattung | Bauart | Fahrzeugnr. | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Stadler | 368 | 2000 | GTW 2/6 | Bo-de | 646 001-8 | |
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| Stadler | 369 | 2000 | GTW 2/6 | Bo-de | 646 002-6 | |
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| Stadler | 370 | 2000 | GTW 2/6 | Bo-de | 646 003-4 | |
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| Stadler | 371 | 2000 | GTW 2/6 | Bo-de | 646 004-2 | |
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| Stadler | 372 | 2000 | GTW 2/6 | Bo-de | 646 005-9 | |
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| Stadler | 373 | 2000 | GTW 2/6 | Bo-de | 646 006-7 | |
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| Stadler | 374 | 2000 | GTW 2/6 | Bo-de | 646 007-5 | |
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| Stadler | 375 | 2000 | GTW 2/6 | Bo-de | 646 008-3 | |
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| Stadler | 376 | 2000 | GTW 2/6 | Bo-de | 646 009-1 | |
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| Stadler | 377 | 2000 | GTW 2/6 | Bo-de | 646 010-9 | |
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| Stadler | 378 | 2000 | GTW 2/6 | Bo-de | 646 011-7 | |
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| Stadler | 379 | 2000 | GTW 2/6 | Bo-de | 646 012-5 | |
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| Stadler | 380 | 2000 | GTW 2/6 | Bo-de | 646 013-3 | |
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| Stadler | 381 | 2000 | GTW 2/6 | Bo-de | 646 014-1 | |
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| Stadler | 382 | 2000 | GTW 2/6 | Bo-de | 646 015-8 | |
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| Stadler | 383 | 2000 | GTW 2/6 | Bo-de | 646 016-6 | |
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| Stadler | 384 | 2000 | GTW 2/6 | Bo-de | 646 017-4 | |
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| Stadler | 385 | 2000 | GTW 2/6 | Bo-de | 646 018-2 | |
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| Stadler | 386 | 2000 | GTW 2/6 | Bo-de | 646 019-0 | |
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| Stadler | 387 | 2000 | GTW 2/6 | Bo-de | 646 020-8 | |
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| Stadler | 388 | 2000 | GTW 2/6 | Bo-de | 646 021-6 | |
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| Stadler | 389 | 2000 | GTW 2/6 | Bo-de | 646 022-4 | |
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| Stadler | 390 | 2000 | GTW 2/6 | Bo-de | 646 023-2 | |
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| Stadler | 391 | 2000 | GTW 2/6 | Bo-de | 646 024-0 | |
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| Stadler | 392 | 2000 | GTW 2/6 | Bo-de | 646 025-7 | |
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| Stadler | 393 | 2000 | GTW 2/6 | Bo-de | 646 026-5 | |
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| Stadler | 394 | 2000 | GTW 2/6 | Bo-de | 646 027-3 | |
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| Stadler | 395 | 2000 | GTW 2/6 | Bo-de | 646 028-1 | |
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| Stadler | 396 | 2000 | GTW 2/6 | Bo-de | 646 029-9 | |
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| Stadler | 397 | 2000 | GTW 2/6 | Bo-de | 646 030-7 | |
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| Hersteller | Fabriknr. | Baujahr | Typ | urspr. Gattung | Bauart | Fahrzeugnr. | ||||
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| Bombardier | 520/001 | 2000 | GTW 2/6 | 2' | 946 501-4 | |
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| Bombardier | 520/002 | 2000 | GTW 2/6 | 2' | 946 502-2 | |
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| Bombardier | 520/003 | 2000 | GTW 2/6 | 2' | 946 503-0 | |
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| Bombardier | 520/004 | 2000 | GTW 2/6 | 2' | 946 504-8 | |
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| Bombardier | 520/005 | 2000 | GTW 2/6 | 2' | 946 505-5 | |
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| Bombardier | 520/006 | 2000 | GTW 2/6 | 2' | 946 506-3 | |
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| Bombardier | 520/007 | 2000 | GTW 2/6 | 2' | 946 507-1 | |
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| Bombardier | 520/008 | 2000 | GTW 2/6 | 2' | 946 508-9 | |
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| Bombardier | 520/009 | 2000 | GTW 2/6 | 2' | 946 509-7 | |
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| Bombardier | 520/010 | 2000 | GTW 2/6 | 2' | 946 510-5 | |
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| Bombardier | 520/011 | 2000 | GTW 2/6 | 2' | 946 511-3 | |
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| Bombardier | 520/012 | 2000 | GTW 2/6 | 2' | 946 512-1 | |
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| Bombardier | 520/013 | 2000 | GTW 2/6 | 2' | 946 513-9 | |
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| Bombardier | 520/014 | 2000 | GTW 2/6 | 2' | 946 514-7 | |
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| Bombardier | 520/015 | 2000 | GTW 2/6 | 2' | 946 515-4 | |
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| Bombardier | 520/016 | 2000 | GTW 2/6 | 2' | 946 516-2 | |
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| Bombardier | 520/017 | 2000 | GTW 2/6 | 2' | 946 517-0 | |
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| Bombardier | 520/018 | 2000 | GTW 2/6 | 2' | 946 518-8 | |
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| Bombardier | 520/019 | 2000 | GTW 2/6 | 2' | 946 519-6 | |
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| Bombardier | 520/020 | 2000 | GTW 2/6 | 2' | 946 520-4 | |
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| Bombardier | 520/021 | 2000 | GTW 2/6 | 2' | 946 521-2 | |
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| Bombardier | 520/022 | 2000 | GTW 2/6 | Bpd | 2' | 946 522-0 | |
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| Bombardier | 520/023 | 2000 | GTW 2/6 | 2' | 946 523-8 | |
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| Bombardier | 520/024 | 2000 | GTW 2/6 | 2' | 946 524-6 | |
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| Bombardier | 520/025 | 2000 | GTW 2/6 | 2' | 946 525-3 | |
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| Bombardier | 520/026 | 2000 | GTW 2/6 | Bpd | 2' | 946 526-1 | |
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| Bombardier | 520/027 | 2000 | GTW 2/6 | 2' | 946 527-9 | |
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| Bombardier | 520/028 | 2000 | GTW 2/6 | 2' | 946 528-7 | |
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| Bombardier | 520/029 | 2000 | GTW 2/6 | 2' | 946 529-5 | |
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| Bombardier | 520/030 | 2000 | GTW 2/6 | 2' | 946 530-3 | |
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Elektrotriebwagen