2018-2024 · 2.0L M260 turbocharged petrol (224 hp)
Premium compact hatchback with impressive tech and performance, but plagued by reliability issues that tarnish the Mercedes badge. The M260 engine is generally solid when maintained, but the 8G-DCT gearbox frequently exhibits jerky shifting and delayed engagement, particularly when cold. MBUX infotainment system is feature-rich but suffers from screen blackouts and software glitches requiring dealer intervention. Build quality inconsistent - some owners report numerous rattles and creaks, while others have trouble-free experiences. Higher maintenance costs than mainstream rivals. Not recommended for short-trip urban use due to carbon buildup and DCT overheating concerns.
Expected Annual Maintenance Costs
€1,100 - €2,100/year
15,000 km/year
Fixed costs
€600-1,050
Risk buffer
€500-1,050
What Can Break
bars = likelihood
8G-DCT gearbox jerking and delayed engagement€300 - €3,500
Dual-clutch transmission notorious for rough shifts, especially when cold · more· less
The 8-speed DCT (model 724.1) used in the A250 exhibits jerky gear shifts, particularly at low speeds, and delayed engagement when shifting from park to drive. Most pronounced when cold - drivers report a noticeable delay/slip from a stop until the transmission warms up. The dual-clutch system is prone to overheating during prolonged use in heavy traffic or spirited driving. Incorrect oil level or aging fluid exacerbates issues. Over 70% of faulty DCT gearboxes had never had an oil change in the previous 100,000 km. Fluid and filter service recommended at 46,500 miles/3 years costs €700-900. Full mechatronics replacement can reach €2,500-3,500. Software updates may provide temporary relief but rarely solve underlying mechanical wear. Manual transmission versions are significantly more reliable.
Screen stays black on startup, system freezes, or fails to boot · more· less
The MBUX system can suffer from both the center screen and digital instrument cluster going dark simultaneously. Causes include software glitches, power supply faults, or damaged LVDS data cables connecting the modules. Heat from inadequate cooling on the Nvidia Tegra graphics chip may cause failures. Some owners report the issue from day 1 despite multiple software updates and replacement control units - one A250 AMG-Line owner had three dealer visits with two replacement control units and the problem persisted. Temporary workaround: deadlock the car for 5+ minutes. Control unit replacements are on worldwide backorder. Mercedes Technical Service Bulletin addresses rearview camera display failures (recall 2022060007). Professional diagnosis essential - don't jump to screen replacement without checking LVDS cables first.
Turbo actuator sticking/failure€500 - €2,500
Actuator sticks from carbon buildup, causes EPC warning and limp mode · more· less
The M260 engine uses an electrical wastegate actuator that tends to stick if driven too gently or only for short trips, as carbon builds up. Symptoms include EPC (Electronic Power Control) light and limp mode with severe power loss. VW/Mercedes dealers often refuse to sell the actuator separately, insisting on full turbo replacement. Actuator-only repair at specialists costs €500-650, but if turbo internals are damaged, full turbocharger replacement runs €1,500-2,500. Prevention: use premium fuel and occasional spirited driving (Italian tune-up). Turbocharger lag is also commonly reported - noticeable delay during acceleration is characteristic of this engine even when functioning correctly.
Thermostat/water pump coolant leak€600 - €1,400
Coolant leaks from radiator, water pump, or thermostat housing · more· less
Coolant leaks are common issues on the M260 engine, typically appearing in the radiator, water pump, or thermostat housing. For the W177 A-Class, the thermostat is hidden behind the engine bay, making it difficult and time-consuming to replace - one owner quoted €700 for a broken thermostat repair. The thermostat can stick open or closed, leading to inconsistent engine temperatures and overheating. Water pump failures typically occur between 70,000-100,000 km. Symptoms include coolant warning light, engine overheating, or poor cabin heating. If coolant level drops or you see visible puddles under the car, immediate inspection is essential to prevent severe engine damage from overheating.
Carbon buildup on intake valves€400 - €800
Direct injection causes carbon deposits, reduces performance over time · more· less
The M260 engine uses direct injection, where fuel is injected directly into the combustion chamber, bypassing the intake valves. Without fuel washing over them, intake valves don't receive the cleaning effect that prevents carbon deposits. Over time (typically 60,000-100,000 km), carbon buildup restricts airflow, leading to reduced engine efficiency, poor throttle response, rough idle, and potential misfires. Positive crankcase ventilation (PCV) systems amplify the problem - crankcase vapors leave an oily film on intake valves that bakes into carbon. Solution is walnut blasting or chemical cleaning, costing €400-800. Newer Mercedes engines (like those in H247 GLA) have dual injection (port + direct) which prevents this issue - unclear if later W177 models received this upgrade. Prevention: high-quality oil, catch can installation, and avoiding only short trips.
Jupiter Red paint bubbles and peels, especially on plastic parts · more· less
Mercedes A-Class owners, particularly those with Jupiter Red paint, report severe paint defects - lacquer bubbling and peeling on door handles, rear spoilers, and other areas. Mercedes dealerships acknowledge "lots of issues with Jupiter red paint peeling on plastic parts." Important: Mars Red (paint code 590) is covered by a class action settlement with extended warranty up to 15 years, but Mercedes corporate explicitly states Jupiter Red is NOT covered. Some owners received 50% goodwill contributions, but Mercedes typically refuses full warranty coverage after the 3-year warranty expires. Mercedes doesn't cover paint on plastic parts after warranty. Full respray can cost €1,000-4,000 depending on affected panels. Some owners report the issue affects every panel except bumpers, confirmed by paint shops as a manufacturer defect.
Sunroof water leak€200 - €800
Water enters cabin around sunroof, door seals, windows from clogged drains · more· less
Water leaks into the cabin are reported, particularly around the sunroof. The most common cause is clogged sunroof drain tubes - leaves, debris, and dirt accumulate in drainage tubes, preventing water from flowing properly. When drains are blocked, water backs up and spills into the cabin or engine area. The W177 has four drainage points in the corners of the sunroof frame, with drain tubes running through the A-pillars (front) and C-pillars (rear). Test by pouring water into the sunroof opening and checking behind front wheels for drainage. Cleaning involves removing wheels and rear half of fender liner, then using compressed air, flexible cleaning brush, or water flush. Deteriorating rubber seals around the sunroof perimeter can also cause leaks. Repair costs range from €200 for drain cleaning to €800+ for seal replacement or sunroof mechanism issues.
High oil consumption€150 - €600
Some engines consume oil excessively as mileage increases · more· less
High oil consumption is a recurring complaint among A250 owners, especially as the vehicle accumulates mileage (typically above 80,000 km). This problem can be attributed to worn piston rings or valve stem seals, though the M260 engine uses optimized piston rings and CONICSHAPE technology designed to minimize friction. Mercedes considers oil consumption of up to 1 liter per 1,000 km "normal" under certain driving conditions. If consumption is excessive, diagnosis involves compression test and leak-down test to determine if piston rings (€600+ repair) or valve stem seals (€600-800) are the cause. Some owners report the M260 engine may start knocking badly after filling with regular gasoline - always use premium fuel. Regular oil changes with high-quality low-volatility oil are essential for prevention.
Suspension noise and rattles€300 - €1,200
Clunking from suspension, excessive road/tire noise, interior rattles · more· less
Multiple owners describe the road and tire noise as "atrocious for a modern €30,000+ car," suggesting limited insulation. The suspension gives off clunking sounds over certain road imperfections, particularly from the rear axle. Some owners compare it unfavorably to cheaper competitors, noting a SEAT Leon had "zero creaks and rattles" while describing "the symphony of rattles the cabin on the W177 has." Common causes include worn control arm bushings, failing wheel bearings, or shock absorber issues. Front axle carrier corrosion recall (2022070009) affects 2019-2020 A220 and 2021 GLB35 - the integral carrier can corrode and fail, causing loss of steering control. Uneven tire wear can result from misaligned suspension geometry or worn components. Choosing comfort-oriented tires over run-flats can reduce noise. Suspension geometry check and alignment costs €100-200; bushings/shock replacement €300-1,200.
Premium price without premium reliability
The W177 A250 offers impressive technology and performance when everything works, but reliability is inconsistent. Early adopters faced numerous teething issues with the new platform. The DCT gearbox and MBUX system are particular weak points. Forums suggest experiences vary wildly - some owners report trouble-free ownership while others visit the dealer every few months. Budget significantly more for maintenance than mainstream rivals like VW Golf or Ford Focus.
Pre-Purchase Inspection Checklist
General checks
Service history
Complete Mercedes-Benz dealer or authorized specialist records essential. Verify DCT gearbox oil changes (critical at 46,500 miles/3 years).
Tires
Check tread depth, age, and uneven wear patterns. Front tires on A250 wear faster with spirited driving.
Cold start
Must start engine completely cold. Listen for unusual sounds, check for blue smoke indicating oil consumption.
Body condition
Thoroughly inspect Jupiter Red or Mars Red paint for bubbling/peeling, especially door handles and spoiler.
Test drive
Minimum 30 minutes including varied speeds. DCT issues most apparent when cold then warming up.
Specific for this vehicle
Test DCT gearbox thoroughly when cold
Start completely cold and drive immediately. Feel for jerking, hesitation, or delay from standstill. Pay attention to 1st-to-2nd gear shift and P-to-D engagement. Test "California stops" (rolling without full stop then accelerating).
MBUX system functionality test
Turn car on/off multiple times. Both screens (instrument cluster and center display) should boot reliably. Test touchscreen response, voice commands, navigation, and rearview camera. Ask about previous screen blackout issues.
Check for EPC warning light and turbo lag
Drive spiritedly and watch for EPC light. Test acceleration from low RPM - some turbo lag is normal, but severe hesitation or limp mode indicates actuator problems.
Inspect coolant level and check for leaks
Check coolant reservoir level when cold. Look under car for puddles. Low coolant or brown/milky appearance indicates thermostat/water pump issues or head gasket failure.
Listen for suspension clunking and interior rattles
Drive over speed bumps and rough roads. Listen for clunking from suspension, particularly rear axle. Check for excessive road noise at highway speeds. Open/close doors to test for interior rattles.
Verify recall completion (VIN check)
Check MBUSA recall website or contact dealer with VIN. Critical recalls: front axle carrier corrosion (2022070009), eCall system (2022060005), rearview camera (2022060007), MBUX/camera display (2019-2021).
Check sunroof drains and test for water leaks
Pour water in sunroof opening and verify drainage behind front wheels. Inspect footwell carpets and under seats for dampness or water stains.
Paint inspection (especially Jupiter Red/Mars Red)
Inspect all panels, door handles, spoiler, and plastic trim for paint bubbling, peeling, or flaking. Mars Red (590) covered by settlement, Jupiter Red not covered. Check for previous paint repairs.
Recalls and Technical Service Bulletins
Front axle carrier corrosion (2019-2021)Verify completed
eCall emergency system software (2017-2022)OTA update or dealer
Rearview camera software error (2018-2021)Verify completed
Driver's side airbag module (2019-2020)Verify completed
Brake pad inspection gauge missing (2019-2020)Verify completed
Headlight adjustment (2022)Verify completed
Contact Mercedes-Benz dealer with VIN to verify all recalls completed. The eCall recall affects nearly 1.3 million vehicles - critical for emergency services. Front axle carrier corrosion recall is safety-critical (loss of steering control).
Warranty Status
Factory warranty (2 years unlimited km)Expired on 2018-2022 models
Extended warranty available€800-1,400/year
Corrosion warranty30 years (MB serviced)
Mars Red paint settlement (paint code 590)Up to 15 years coverage
All 2018-2022 A250s are outside factory warranty. Extended warranty recommended given reliability concerns - ensure it covers MBUX system and DCT gearbox. Paint warranty: Mars Red (590) covered by class action settlement up to 15 years/150,000 miles, but Jupiter Red explicitly NOT covered. If car has full MB service history, 30-year corrosion warranty applies.
This report is for informational purposes only and does not constitute professional advice. Estimates may be inaccurate. Always have a qualified specialist inspect the vehicle before purchase. We accept no liability for decisions made based on this information.