(805) 624-7576

Independent Mercedes Specialists — Simi Valley

Dealer precision.
Independent price.

Precision Mercedes-Benz service from certified European auto technicians.

Est. 2009
2-Year Warranty
150+ Five-Star Reviews
Factory-level Mercedes diagnostics
Same tools as the dealer
25–35% Less Than Dealer
// SYSTEM: XENTRY 23.06 | MODULE: 01-Engine | STATUS: All clear

Factory-Level Tooling

XENTRY

Factory Mercedes diagnostic system — the same software used at every authorized Mercedes-Benz dealer. Full fault code access, SCN coding, and adaptation resets.

Fault Scanning

DAS

Dealer-level guided repair procedures for Mercedes-Benz. Component testing, calibration sequences, and software updates not accessible via generic tools.

Guided Repair

WIS/ASRA

OEM wiring diagrams and repair manuals for every Mercedes model. We work from factory documentation — not third-party databases.

Factory Documentation

OBD-II Pro

Advanced oscilloscope diagnostics for intermittent faults — the issues other shops declare "can't reproduce."

Advanced Diagnosis

Factory-Level Diagnostics

XENTRY/DAS — the same software as every authorised Mercedes-Benz dealer.

What We Service

Oil & Filter Service

Factory-spec oil changes with OEM or premium synthetic oil and filter.

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Brake Service & Repair

Pad, rotor, caliper, and brake fluid service. Safety inspected every visit.

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Diagnostics & Scan

Factory-level diagnostic scanning for all fault codes, modules, and systems.

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Transmission Service

Fluid exchange, filter, and full inspection for automatic and manual transmissions.

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Cooling System Service

Coolant flush, thermostat, water pump, and radiator inspection and repair.

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Suspension & Steering

Shocks, struts, tie rods, bushings, and full wheel alignment service.

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// SYSTEM: XENTRY 23.06 | VEHICLE: Mercedes OM651 | RESULT: Maintenance schedule on track

Independent Specialists

Dealer tooling. Independent pricing. Simi Valley, CA.

Why Mercedes Specialist Owners Choose Us

Why Not The Dealer?

  • Save 25-35% vs Mercedes dealer rates on the same work, same parts, same warranty.
  • XENTRY/DAS for SCN coding and adaptation resets — we see exactly what the dealer sees.
  • Mercedes-Benz and AMG specialists — you get a specialist who lives in your car's world, not a generalist with a scan tool.

Mercedes-Benz engineering demands more than a generic scan tool. AIRMATIC air suspension requires calibration after every strut replacement and level sensor swap — a step most independent shops skip. The 7G-Tronic and 9G-Tronic transmissions need proper SCN coding after valve body work, not just a fluid change. AMG engine variants — M156, M177, M178 — carry specific tolerances and service protocols that differ from their non-AMG counterparts. We use XENTRY/DAS diagnostic software and perform coding, SCN programming, and adaptation resets in-house for every affected system.

Our team understands the Mercedes service interval philosophy: the ASSYST service indicator isn't just a mileage counter — it's a consumption model that accounts for driving style, load, and thermal cycles. We reset it correctly, use only MB 229.3/229.5/229.52-approved lubricants, and document every service to protect your Mercedes service history. We also perform AIRMATIC plausibility checks at every oil service — catching air spring fatigue before it becomes a compressor failure.

Mercedes-Benz M278 V8 engine during inspection at Mercedes Auto Repair Simi Valley

M278 V8 — factory-spec service and inspection.

Whether you drive a C-Class daily driver, an S-Class with Full AIRMATIC and MAGIC BODY CONTROL, or an AMG GT with a hand-built flat-plane V8, German Auto Doctor treats your vehicle with the level of care its engineering deserves — and gives you the direct communication and transparent pricing a dealership rarely will.

// SYSTEM: DAS | SUBSYSTEM: AIRMATIC | STATUS: No faults found

Models

Frequently Asked Questions

Yes. We service the full AMG lineup including the M156 naturally aspirated V8, the M177 twin-turbo, and current AMG four-cylinder models. Our XENTRY/DAS diagnostic access covers AMG-specific modules, performance maps, and adaptation values that generic OBD scanners and non-specialist shops cannot reach.

Yes. We service both the 7G-Tronic (722.9) and 9G-Tronic (725.0) with the correct Mercedes-approved ATF and external filter replacement. Skipping transmission service past 60,000 miles is the leading cause of 7G-Tronic mechatronic unit failure — an expensive repair that regular fluid service prevents.

Mercedes engines require MB 229.3, 229.5, or 229.52 spec oils depending on year and engine. Many general shops use incorrect viscosities — often 5W-30 instead of 0W-40 or 5W-40 — which accelerates wear on the OM642 diesel and M278 V8 in particular. We match the exact oil specification to your VIN before every service.

Yes. AIRMATIC strut replacement, compressor service, valve block diagnosis, and level sensor calibration are all routine procedures here. We stock Arnott and OE-spec struts and always perform a four-corner electronic calibration after any suspension repair to restore proper ride height and handling balance.

Trusted in Simi Valley

Mercedes Specialist Owners Come Back.

★★★★★ Google Reviews
10+ Years Serving Simi Valley
7 European Makes Serviced

Mercedes issue? Our specialists have the answer.