Proton X90
2023–present · 1.5T TGDi + 48V mild hybrid (Geely-derived, direct injection) · 7-speed wet DCT
The Proton X90 (2023+) is Proton's 7-seater flagship SUV based on the Geely Haoyue/Xingyue L platform. The 1.5T TGDi 4-cylinder with 48V mild hybrid delivers strong performance. Direct injection means carbon buildup at 60,000–80,000 km. DCT fluid every 40,000 km. 48V BSG belt inspection critical at 60,000 km. Most complex Proton to service.
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Proton X90 Common Problems Malaysia
Proton X90 (2023+): most complex Proton to date. 48V BSG belt inspection critical at 60,000 km. DCT shudder from 7-speed wet DCT — same family as X50/S70. Carbon buildup from 1.5T 4-cylinder TGDi direct injection at 60,000–80,000 km. Software updates important — early units may have ADAS calibration issues. 7-seater: third-row legroom tight for adults.
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💰Proton X90 Repair Cost Malaysia 2025
X90: engine oil RM 280–500, DCT fluid RM 380–620, carbon clean RM 1,000–1,600, spark plugs RM 350–600. Annual budget: RM 2,500–4,500. 48V BSG belt check at 60,000 km: RM 200–400. Most expensive Proton to run — complex systems. 7-seater SUV: more tyre + brake cost.
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📅Proton X90 Service Schedule Malaysia
X90: engine oil every 10,000 km (0W-20 turbo). DCT fluid every 40,000 km. Spark plugs every 60,000 km. Air filter every 20,000 km. Carbon cleaning at 60,000–80,000 km. 48V BSG belt inspect at 60,000 km. Brake fluid every 2 years. Coolant every 5 years.
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🛢️Proton X90 Engine Oil Malaysia — 0W-20 Turbo
X90 1.5T TGDi 4-cyl: 4.5L capacity, 0W-20 fully synthetic turbo spec. Every 10,000 km — never exceed for turbo. 48V mild hybrid: no impact on oil spec. Geely-approved brand.
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⚙️Proton X90 DCT Fluid Malaysia
X90 7-speed wet DCT: fluid every 40,000 km — RM 380–620. Larger heavier SUV = more DCT thermal stress than X50/S70. Software update before fluid change. Use only Geely/Proton-specified fluid.
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💨Proton X90 Air Filter Malaysia
X90 1.5T: panel air filter every 20,000 km, RM 80–180. Turbo: clean air critical. Inspect at every oil change.
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🌡️Proton X90 Coolant Malaysia
X90: Geely/Proton long-life coolant. First change 5 years/100,000 km, then every 3 years. 48V mild hybrid: larger cooling demand. Malaysia cost RM 250–450.
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🛑Proton X90 Brake Pads Malaysia
X90: large 7-seater SUV — front pads 40,000–55,000 km. OEM RM 380–700/axle. EPB rear — calibration tool required. 7-passenger + load: inspect rear pads every 25,000 km.
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⭕Proton X90 Brake Disc Malaysia
X90 front: 320mm disc. Rear: 300mm disc. OEM RM 600–1,100/axle. EPB rear: professional piston wind-back required.
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🔵Proton X90 Brake Fluid Malaysia
DOT 4. Every 2 years. EPB: Proton SC tool required. Malaysia cost RM 200–380.
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🔋Proton X90 Battery Malaysia — 48V + 12V
X90 has TWO batteries: 12V AGM (conventional) and 48V lithium mild hybrid. 12V AGM 70Ah: Proton SC registration required. 48V: specialist/dealer only — high voltage. Malaysia 12V installed RM 600–1,000. 48V: RM 3,000–8,000+ depending on condition.
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⚡Proton X90 BSG / Alternator Malaysia
X90: 48V Belt Starter Generator (BSG) replaces alternator. BSG belt critical — inspect at 60,000 km. BSG failure: engine cranking + 48V warning. Malaysia BSG replacement: Proton dealer, RM 5,000–15,000+.
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❄️Proton X90 Air Conditioning Malaysia
X90: R134a. Dual-zone + 3rd row vents. Large 7-seater SUV — A/C hardest working in Proton lineup. Compressor RM 2,000–4,000. Cabin filter every 15,000 km. Re-gas every 3–4 years.
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🌬️Proton X90 Cabin Filter Malaysia
X90 cabin filter. Every 15,000 km, RM 90–200. 7-seater: highest air demand. Malaysia haze: every 10,000 km.
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🔵Proton X90 Tyre Guide Malaysia
X90: 235/55 R18 or 235/50 R19. FWD: rotate front-to-rear every 10,000 km. Heavy SUV — front tyres wear faster. Malaysia RM 350–700/tyre.
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🎯Proton X90 Wheel Alignment Malaysia
4-wheel alignment after every tyre change. Heavy SUV: critical. Malaysia RM 100–200.
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✨Proton X90 Spark Plugs Malaysia
X90 1.5T 4-cyl: 4 iridium plugs every 60,000 km, RM 350–600. 4-cylinder: replace all 4. Check coils. Direct injection: plugs show carbon fouling from 40,000 km.
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⛓️Proton X90 Timing Chain Malaysia
X90 1.5T: timing chain — no replacement. Oil every 10,000 km turbo spec. No known issues on early units.
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🔧Proton X90 Carbon Cleaning Malaysia
X90 1.5T 4-cyl: direct injection — carbon on intake valves at 60,000–80,000 km. Larger displacement than 3-cyl X50/S70 — similar buildup rate. Walnut blast: RM 1,000–1,600. Symptoms: rough cold idle, 3,000+ RPM hesitation.
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🔩Proton X90 Engine Mount Malaysia
X90 engine mounts at 80,000–120,000 km. Heavy 7-seater SUV — more stress than X50. 48V BSG: torque cycling adds load. Malaysia RM 500–1,000/pair.
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🚗Proton X90 Suspension Malaysia
X90: MacPherson front, multi-link rear. Front strut bearing: 80,000+ km. Rear lower arm: 80,000–100,000 km. Heavy SUV — inspect at every 20,000 km. Malaysia front RM 600–1,100 each.
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💻Proton X90 SC Diagnostic Malaysia
X90: Proton SC tool required for 48V BSG, EPB, battery registration, DCT adaptation, ADAS calibration. Generic OBD-II insufficient for most functions. Malaysia SC scan RM 150–300. Specialist workshop essential.
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🔔Proton X90 Service Indicator Reset Malaysia
X90: reset via dashboard or Proton eService. DCT, carbon, BSG belt not tracked — set manual reminders. SC recommended for full system reset.
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💧Proton X90 Oil Leak Malaysia
X90 1.5T: turbo oil lines at 80,000+ km. Valve cover gasket at 80,000+ km. New model — limited long-term data. Malaysia repair RM 400–1,000.
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🔄Proton X90 Power Steering Malaysia
X90: EPS — no fluid. Large SUV: heavier steering feel than X50. EPS rack RM 1,800–3,500.
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⛽Proton X90 Fuel Economy Malaysia
X90 1.5T city: 10–13 L/100km; highway: 7–9 L/100km. 48V mild hybrid: energy recovery under braking reduces re-acceleration fuel. ECO mode. Turbo: smooth throttle. 7 passengers: add 1.5–2.5 L/100km.
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📈Proton X90 Resale Value Malaysia
X90: new model (2023) — limited resale data. Flagship Proton: buyers want clean history + 48V BSG health. Expected 40–55% depreciation 5 years. 7-seater SUV segment competitive in Malaysia.
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✅Buying Used Proton X90 Malaysia — Checklist
Used X90 checklist: DCT shudder test. 48V BSG: no amber warning light. Software update history (Proton SC). Carbon: rough cold idle at 60,000+ km. Full SC diagnostic scan. Oil history (turbo spec). EPB function. Battery age (12V AGM).
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📖Proton X90 — Proton's Flagship 7-Seater SUV Malaysia
X90 launched 2023. Based on Geely Haoyue/Xingyue L platform. 1.5T TGDi 4-cyl + 48V mild hybrid + 7-speed wet DCT. FWD standard (AWD not available in Malaysia). 6 or 7 seats. ADAS across all variants. Biggest and most capable Proton ever. Direct rival: Toyota Innova Cross, Honda BR-V (different segment but overlapping buyers).
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🔬Proton X90 Workshop Cases Malaysia — 4M Car Care
Real X90 cases: 2023 X90 28,000 km DCT shudder — SC software update resolved without fluid change. 2023 X90 32,000 km 48V BSG amber light — BSG belt tensioner inspection, belt adjusted RM 280. 2024 X90 45,000 km rough cold idle — carbon starting at 3-cylinder bank, walnut blast scheduled. 2023 X90 EPB fault after dead 12V — Proton SC full registration RM 200, resolved. Early model: software issues dominant over mechanical.
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