Practical BMW ownership content for Simi Valley and the Conejo Valley. Buying guides, maintenance deep-dives, engine comparisons, and what actually matters at each service interval.
BMW's CBS indicator says 15,000 miles. Independent BMW technicians in Southern California say something different. The gap between the two is where expensive engine wear happens.
Read article → Buying GuideThree generations of BMW twin-turbocharged six-cylinder. Each has a different reliability profile, different maintenance concerns, and a different price position in the used market. What to know before you buy.
Read article → Buying GuideE53, E70, F15, or G05 — each generation has different strengths and failure modes. A generation-by-generation inspection guide for buyers in the Simi Valley and Conejo Valley market.
Read article → OwnershipFactory warranty, diagnostic capability, parts quality, and pricing. The real differences between dealer and independent BMW service — and what matters most for owners in the 805.
Read article →German Auto Doctor serves BMW owners throughout Simi Valley and the Conejo Valley — oil service, cooling system, VANOS, brakes, and everything in between.
Service by German Auto Doctor · 521 E Los Angeles Ave, Simi Valley CA 93065