Home › Browse Parts › 2012-2015 MERCEDES C250 SLK250 (R172 W204) 1.8L TURBO M271 ENGINE CONTROL MODULE

4 detailed photos of the actual item — this exact part is what ships.

From donor vehicle 2012 Mercedes C250 (stock AA1284).

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2012 Mercedes C250

2012-2015 MERCEDES C250 SLK250 (R172 W204) 1.8L TURBO M271 ENGINE CONTROL MODULE

$235.77 List $248.18
✓ FREE SHIPPING — LOWER 48 + DC

Free 90-day warranty & 90-day any-reason returns on everything.

Order now and your order ships tomorrow — same-day shipping when ordered by 11 AM Pacific on a business day.

Estimated arrival: Monday, July 20 to Friday, July 24 — it's common for this to vary by a day or two.

Genuine OEM — exact item pictured. The photos show the actual factory-original part you’ll receive — inspected, cleaned, and carefully packed.

What you see is exactly what you get

No stock photos, ever. Every listing shows the actual part that will ship to you — already pulled and cleaned — so you can confirm it's exactly what you need, in the condition you expect, before you buy. All backed by a free 90-day warranty and hassle-free returns.

Free 90-day warranty + hassle-free returns

Wrong part? Changed your mind? For eligible lower-48 + DC orders, returns are on us for ANY reason — hit the Contact Viking button for a prepaid label. Refunds are always cash to your payment method, never store credit.

Same-business-day shipping

We ship same business day if ordered before 11 AM Pacific — every part is already pulled, cleaned, and on the shelf, not buried in a car in the yard.

Free shipping (lower 48 + DC)

For eligible destinations, the checkout math stays calm: the listed direct price is the price that ships.

ASE-tested big stuff

Engines and transmissions are tested by our ASE Master Mechanic before listing.

Viking Item ID 151522
Programming or relearn may be needed.

This part type typically requires dealer or specialty European auto shop programming, coding, or a relearn procedure after installation and may not function until that's done.

Does this fit my vehicle?

Paste your 17-character VIN — it’s on your registration, insurance card, or the driver’s-door jamb.

We verify factory/OEM fitment only — upgrades, retrofits, and custom applications may need parts or coding we can’t verify or guarantee.

Item Specifics

Donor vehicle
2012 Mercedes C250
Donor VIN
WDDGF4HB6CR203670
Donor miles
81,206
Part number (OEM)
34468840
Interchange #
590-61332
Brand
Mercedes (Genuine OEM)
Stock #
AA1284
Viking Item ID
151522

1.8T, (271.80) ENGINE CONTROL MODULE | 0034468840

  • ✓These photos show the exact individual part you'll receive — no stock photos
  • ✓Genuine OEM — factory-original parts
  • ✓Inspected before listing — engines & transmissions tested by an ASE Master Mechanic
  • ✓FREE 90-day warranty & 90-day any-reason returns — we cover return shipping for eligible lower-48 + DC orders, freight included (details)
  • ✓Order by 11 AM Pacific on a business day — ships that same day (holidays excluded)
  • ✓Want longer coverage? Extended warranties to 180 or 365 days — see options
Ask about this part / verify fitment — free, no pressure

Compatible Vehicles (20)

Verified Hollander interchange fitment — the same stickered, tracked compatibility data our listing crew uses. Scroll inside the table; no page-flipping. Not sure? Use the VIN check above and we’ll confirm.

YearMakeModelTrimEngineNotes
2012 Mercedes-Benz C250 Base Coupe 2-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250, SDN, RWD
2012 Mercedes-Benz C250 Base Sedan 4-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250, SDN, RWD
2012 Mercedes-Benz C250 Luxury Sedan 4-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250, SDN, RWD
2012 Mercedes-Benz C250 Sport Sedan 4-Door 1.8L 1796CC 110Cu. In. l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250, SDN, RWD
2012 Mercedes-Benz C250 Sport Sedan 4-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250, SDN, RWD
2013 Mercedes-Benz C250 Base Coupe 2-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250
2013 Mercedes-Benz C250 Luxury Sedan 4-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250
2013 Mercedes-Benz C250 Sport Sedan 4-Door 1.8L 1796CC 110Cu. In. l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250
2013 Mercedes-Benz C250 Sport Sedan 4-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250
2014 Mercedes-Benz C250 Base Coupe 2-Door 1.8L 1796CC 110Cu. In. l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250
2014 Mercedes-Benz C250 Base Coupe 2-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250
2014 Mercedes-Benz C250 Luxury Sedan 4-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250
2014 Mercedes-Benz C250 Sport Sedan 4-Door 1.8L 1796CC 110Cu. In. l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250
2014 Mercedes-Benz C250 Sport Sedan 4-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250
2015 Mercedes-Benz C250 Base Coupe 2-Door 1.8L 1796CC 110Cu. In. l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250 (CPE)
2015 Mercedes-Benz C250 Base Coupe 2-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 204 TYPE, ELECTRONIC CONTROL MODULE, C250 (CPE)
2012 Mercedes-Benz SLK250 Base Convertible 2-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 172 TYPE, SLK250
2013 Mercedes-Benz SLK250 Base Convertible 2-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 172 TYPE, SLK250
2014 Mercedes-Benz SLK250 Base Convertible 2-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 172 TYPE, SLK250
2015 Mercedes-Benz SLK250 Base Convertible 2-Door 1.8L 1796CC l4 GAS DOHC Turbocharged 172 TYPE, SLK250