The service and repair manual for the 2018 INFINITI Q50 — 3.0L V6 and 2.0L I4 and 3.7L V6 and 3.5L V6 engines, 11 trims. Matched to this exact model year, so the specifications and sequences are the ones INFINITI published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2018 |
|---|---|
| Engines | 3.0L V6 — 183 cu in, DOHC, turbocharged 2.0L I4 — 121 cu in, DOHC, turbocharged 3.7L V6 — 226 cu in, DOHC 3.5L V6 — 213 cu in, DOHC |
| Trims | Red Sport 400 Sedan 4-Door · Premium Sedan 4-Door · Perfection Sedan 4-Door · Hybrid Sedan 4-Door · Luxe Sedan 4-Door · Sport Sedan 4-Door +5 |
| Federal record | 3 recalls · 63 complaints · 96 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2018 Q50 manual
03 / ContentsSections in the manual
- Quick Lookups 1,007
- General Information 1,520
- Accessories & Equipment 8,919
- Heating, Ventilation & A/C (HVAC) 443
- Body & Frame 2,256
- Maintenance 161
- Brakes 429
- Restraints 854
- Drivelines & Axles 382
- Steering 1,125
- Electrical 4,457
- Suspension 626
- Engine Mechanical 288
- Transmission 707
- Engine Performance 3,461
- Front Axle Nut (AWD) 92
- Front Hub Bolts 65
- Rear Axle Nut 74
04 / Known issuesRecalls on federal record for the 2018 Q50
- Fuel System, Gasoline — delivery › fuel pump · 17V476000An engine stall can increase the risk of a crash.
- Power Train — driveline › driveshaft · 24V470000A broken driveshaft can result in a loss of drive power, or a vehicle roll away when the vehicle is.
- Back Over Prevention — sensing system › camera · 19V654000The lack of an image in the back-up camera display increases the risk of a crash.
Owners have filed 63 complaints and INFINITI has issued 96 technical service bulletins for the 2018 Q50. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2018 Q50 manual
Is this manual specific to the 2018 Q50?
Yes. It is the OEM manual matched to the 2018 model year, covering the 3.0L V6 and 2.0L I4 and 3.7L V6 and 3.5L V6 across the Red Sport 400 Sedan 4-Door, Premium Sedan 4-Door, Perfection Sedan 4-Door, Hybrid Sedan 4-Door, Luxe Sedan 4-Door, Sport Sedan 4-Door, Pure Sedan 4-Door, Seduction Sedan 4-Door, Luxury Sedan 4-Door, Hybrid Luxe Sedan 4-Door, 400 Sport Sedan 4-Door trims. Specifications and procedure sequences are the ones INFINITI published for this year.
What 2018 Q50 problems does it help with?
3 recalls are on federal record for the 2018 Q50, covering fuel system, gasoline, power train, back over prevention. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by INFINITI dealers.
Does it include 2018 Q50 wiring diagrams?
Yes — the complete wiring diagrams for the 2018 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $49.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.
RelatedOther Q50 years and 2018 INFINITI models
2024 Q50 · 2023 Q50 · 2022 Q50 · 2021 Q50 · 2020 Q50 · 2019 Q50 · 2017 Q50 · 2016 Q50 · 2015 Q50 · 2014 Q50 · all 11 years
2018 INFINITI Q60 · 2018 INFINITI Q70 · 2018 INFINITI Q70L · 2018 INFINITI QX30 · 2018 INFINITI QX50 · 2018 INFINITI QX60 · 2018 INFINITI QX70 · 2018 INFINITI QX80 · every 2018 model