The service and repair manual for the 2018 BMW 340i — the 3.0L I6 engine, 2 trims. Matched to this exact model year, so the specifications and sequences are the ones BMW published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2018 |
|---|---|
| Engines | 3.0L I6 — 183 cu in, DOHC, turbocharged |
| Trims | Base Sedan 4-Door · M Sport Sedan 4-Door |
| Other 2018 340i variants | 340i GT xDrive → · 340i xDrive → |
| Federal record | 1 recall · 3 complaints · 55 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2018 340i manual
03 / ContentsSections in the manual
- Quick Lookups 773
- Engine Performance 483
- Accessories & Equipment 2,246
- General Information 1,577
- Body & Frame 1,506
- Heating, Ventilation & A/C (HVAC) 62
- Brakes 69
- Maintenance 32
- Collision 144
- Restraints 176
- Drivelines & Axles 438
- Steering 369
- Electrical 2,743
- Suspension 309
- Engine Mechanical 2,504
- Transmission 221
04 / Known issuesRecalls on federal record for the 2018 340i
- Engine And Engine Cooling — engine · 18V465000A vehicle stall can increase the risk of a crash.
Owners have filed 3 complaints and BMW has issued 55 technical service bulletins for the 2018 340i. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2018 340i manual
Is this manual specific to the 2018 340i?
Yes. It is the OEM manual matched to the 2018 model year, covering the 3.0L I6 across the Base Sedan 4-Door, M Sport Sedan 4-Door trims. Specifications and procedure sequences are the ones BMW published for this year.
What 2018 340i problems does it help with?
1 recall is on federal record for the 2018 340i, covering engine and engine cooling. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by BMW dealers.
Does it include 2018 340i wiring diagrams?
Yes — the complete wiring diagrams for the 2018 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $40.99 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 340i years and 2018 BMW models
2017 340i · 2016 340i · all 3 years
2018 BMW 118i · 2018 BMW 120i · 2018 BMW 220i · 2018 BMW 230i · 2018 BMW 230i xDrive · 2018 BMW 318i · 2018 BMW 320i · 2018 BMW 320i xDrive · 2018 BMW 328d · 2018 BMW 328d xDrive · 2018 BMW 330e · 2018 BMW 330i · every 2018 model