HOW TO RESET: Mercedes-Benz GLA-Class X156 Service Light

Mercedes-Benz GLA-Class X156 Service Maintenance Indicator Light Reset

A quick and simple guide on how to reset the oil service maintenance reminder indicator message light on Mercedes-Benz GLA Class X156 Model Series from the year 2014-2015-2016-2017-2018-2019-2020.


  • Close all doors, gear to park position.


  • Turn the key to the first position (Position 1). Make sure the MILEAGE is displayed on the screen.Step 1. X156 Mercedes-Benz- Oil Service Maintenance Reset- Miles is displayed


  • Press and hold the PHONE button and OK button together on the steering wheel to access VEHICLE DATA. Press first the Phone button then the OK Button.Step 2. X156 Mercedes-Benz- Oil Service Maintenance Reset- Miles is displayed-Vehicle data


  • Scroll down to select ASSYST PLUS then press the OK button.Step 3. X156 Mercedes-Benz- Oil Service Maintenance Reset- Assyst Plus


  • Then scroll to FULL SERVICE then press the OK button.Step 4. X146 Mercedes-Benz- Oil Service Maintenance Reset- Full Service


  • Scroll down to CONF. FULL SERVICE then press the OK button.Step 5. X156 Mercedes-Benz- Oil Service Maintenance Reset- Conf. Full Service


  • Select YES then press the OK button.Step 6. X146 Mercedes-Benz- Oil Service Maintenance Reset -select yes


  • Then select CONFIRM then press the OK button.Step 7. X146 Mercedes-Benz- Oil Service Maintenance Reset- confirm


  • FULL SERVICE COMPLETED message appears. Turn off the ignition, Service Maintenance reset is complete.


  • GLA 180
  • GLA 180 d
  • GLA 200
  • GLA 200 d
  • GLA 200 d 4MATIC
  • GLA 220 4MATIC
  • GLA 220 d
  • GLA 220 d 4MATIC
  • GLA 250
  • GLA 250 4MATIC
  • Mercedes-AMG GLA 45 4MATIC

About Mercedes-Benz GLA X156

The production X156 GLA-Class is closely based on the Concept GLA design and was unveiled at the 2013 Frankfurt Motor Show. Orders had been taken beginning from the end of November 2013, and arrived in dealer showrooms during 2014, with Japan and US in the autumn.

GLA facelift (2017–2020)
Mercedes unveiled a mid-life facelift of the GLA SUV at the Detroit Motor Show in January 2017. The updated model came with some cosmetic tweaks on the outside, including a redesigned grille, new front and rear bumpers and updated 18-inch alloy wheels. Moreover, the bi-xenon headlamps of the previous models were replaced by all LED units, while the taillights too were all LED and got a new design pattern. A new Canyon Beige colour option was also added. The interiors carried forward the same dashboard layout, though the infotainment system received a new 8.0-inch screen that was located on top of the centre console in a free-standing layout.

GLA 45 AMG (2014–2019)
The design of GLA 45 AMG is based on Concept GLA 45 AMG, with AMG sports suspension (MacPherson strut front axle with stiffer steering knuckles, four-link rear axle, optimised elastokinematics, specially tuned spring/damper units, bigger anti-roll bars), electromechanical AMG speed-sensitive sports steering, AMG high-performance braking system (ventilated, cross-drilled brake discs, grey-painted brake callipers (optional red)), 3-stage ESP with “SPORT Handling” mode, ESP Curve Dynamic Assist, 5-twin-spoke AMG light-alloy wheels painted titanium grey with high-sheen finish and 235/45 R 19 tyres (optional 10-spoke AMG light-alloy wheels in 2 a choice of 2 colours (titanium grey with high-sheen finish, matt black with high-sheen rim flange) 235/40 R 20 tyres), AMG front apron with front splitter in matt titanium grey, AMG ‘twin blade’ radiator grille in matt titanium grey, black flics (air deflector elements) above the large exterior cooling air intakes, bi-xenon headlamps, side sill panels with titanium grey inserts, ‘TURBO AMG’ lettering on the front wings and the aluminium roof rails, rear diffuser insert with titanium grey trim, rectangular chrome-plated tailpipe trim at the twin tailpipes.

Launch models of the AMG are sold as “Edition 1”, available for one year from market launch, and include a high-gloss black Aerodynamics package with larger front splitter, additional flics in the front apron, and rear aerofoil.The vehicle was unveiled at the 2014 North American International Auto Show with sales from the summer of 2014.

Technical details
The GLA-Class shares its platform with the A-Class and B-Class, with a similar range of petrol and diesel engines. Availability of engines varies between markets. (source:wiki)