What oil does a 2013–2015 Mercedes-Benz GLK (M276) take?

0W-40 (MB 229.5), 6.9 qt (6.5 L) with a filter change.

DRIVEDEX / Mercedes-Benz / GLK

2013–2015

Mercedes-Benz GLK

3.5L V6 (M276) M276 SUV (X204)

The short-run GLK with the good engine — 2013+ M276 dodged the balance-shaft era entirely.

Engine Oil

Viscosity‼

✓ verified

MB 229.51 also listed for M276

src: MB BeVo 229.5 sheet + Motor Reviewer M276 specs

Capacity (with filter)

6.5 L◐ pending

Series-wide M276 figure — confirm on the dipstick/menu at first change

src: Motor Reviewer M276 specs (series-wide)

Oil filter

✓ verified

Match Mann/Hengst crosses to this OE number

src: Blauparts M276 kits + ECS M276 kit

Drain plug torque‼

— in verification queue

Being confirmed

Fluids

Transmission

✓ verified

src: FCP Euro 722.9 guide + Blauparts fitment

ATF spec & service‼

✓ verified

2012+ boxes are all blue-fluid 7G Plus. Never add red 236.14

src: Blauparts fluid guide + FCP Euro 722.9 guide

Coolant‼

◐ pending

Match reservoir color — never mix

src: Blauparts coolant guide + MB BeVo sheets

Brake fluid‼

✓ verified

src: MB BeVo 331.0 sheet + genuine fluid listings

Filters & Ignition

Engine air filter

◐ pending

Element count per airbox being confirmed — commonly listed in pairs

src: Parts fitment listings (2760940004 incl. GLK350)

Cabin filter

— in verification queue

Being confirmed — replace with Service B

Spark plugs

◐ pending

Supersedes SILZKFR8E7S / OE A 004 159 79 03 — verify by VIN; GDI plugs are indexed

src: NGK fitment listings + MBWorld GLK M276 plug thread

Electrical

Battery

— in verification queue

AGM where originally fitted — group/location being confirmed

Key fob battery

◐ pending

src: MB of Fresno key fob guide

Wheels & Wipers

Lug bolt torque‼

130 Nm◐ pending

C-Class-derived platform — confirm against your manual

src: Ricks Free Advice MB torque table

Tire pressure

— in verification queue

Use the driver's door-jamb placard

Wiper blades

— in verification queue

Being confirmed

Service

Oil change interval

◐ pending

src: MB maintenance schedule (dealer guides)

Fuel

✓ verified

src: MBUSA fuel FAQ / owner's manual

Service reminder reset

— in verification queue

Being confirmed

🔧 Mechanic's Notes

Good news first: the 2013–2015 GLK350 runs the M276 — the balance-shaft saga belongs to the 2010–2012 GLK's M272. If a seller waves that worry at you on a 2013+, they're confused.
M276 chains can rattle for a beat on cold start as tensioners/guides wear. Brief and fading is normal-ish; sustained means inspect.
The 7G-Tronic Plus takes MB 236.15 blue only, roughly every 70k. Neglected fluid is how these boxes get a bad reputation.
GDI engine with indexed plugs — correct installation matters as much as the part number at tune-up time.

Field patterns from a working mechanic — diagnose your own car before buying parts.

Open Recalls

Checking NHTSA…

Sources shown per value. Specs can vary by build date, market and trim — for anything critical (torque, fluids), confirm against YOUR owner's manual or door sticker before wrenching. Spotted an error? — corrections jump the queue.