Is the BMW M135i reliable?

In our read, the BMW M135i scores 55 out of 100 on brand reliability. That still varies by generation and how the individual car was looked after, so always check the service history before you commit.

What should I expect to pay for a used BMW M135i with a given mileage?

It depends on the exact variant, age and mileage — a higher-mileage car should ask less. Use the price modeller on this page to get a fair-price range for a specific age and mileage, so you know what to offer.

Where do these BMW M135i figures come from?

They're worked out from current used-BMW M135i listings in Singapore — asking prices, mileage and registration years — not past transaction prices. We refresh them regularly, and we flag thin data rather than guess.

BMW M135i

Name: BMW M135i
Brand: BMW

Two generations on sale. The F20-era M135i is the value pick; the F40-era M135i leads on resale.

Model strength

Tap any for details

Focus

Weighs every axis evenly. Changes the weighting, not the numbers.

▲ 2 axes vary by variant (price, running cost) — see variant pages.

Positioning vs segment

Where does Bmw M135i sit?

4 scoreable luxury hatchbacks · 2 more in segment lack enough listings to score

BMW M135i

this model

Brand reliability

55(+0 vs median 55)

Resale strength

73(−2 vs median 75)

Asking price falls ~9.0% per year

BARGAIN BUYSWell-built but depreciates fast — buy cheap, drive long.

Brand reliability: Consumer-survey composite — JD Power · WhatCar · Consumer Reports. Same score for every variant of a given make.
Resale strength: 100 − 3× annualised tangible-decay (COE-stripped). Fitted from each variant's asking-price-by-age regression then averaged at model level.
Peer set: Every same-segment model with ≥5 active PARF listings whose variants fit a depreciation curve. Practicality isn't plotted — it's a body-shape constant within the segment, so it would be the same for every dot.
Quadrants: The crosshair marks the segment median on each axis. Top-right (Safe Bets) is strong on both; top-left (Hidden Gems) holds value above what the brand reputation suggests; bottom-right (Bargain Buys) is well-built but depreciates fast — buy cheap; bottom-left (High Risk) is soft on both.

Generation

F40-era M135i (2019-present) · Reg 2020–2024

Tap to expand

Asking: S$140k–165k
Median: S$153k
Decay: 7.8%/yr

No widely-documented gen-defining issue at the level we curate for. Let condition + service book decide; the disclosure below has the deeper advice.

Trims in this generation

Pick a trim to see its score, deal target, and pre-purchase checklist.

ICE

1 trim

xDrive
45/100−S$36k/yr

Generation

F20-era M135i (2012-2019) · Reg 2012–2019

Tap to expand

Verdict

BMW's hot hatch — 1-Series F20 chassis with N55 inline-six turbo (M135i pre-2016) + B58 inline-six (M140i 2016-2019). The B58 M140i is widely considered the cult enthusiast pick: rear-wheel-drive + inline-six + ZF 8-speed automatic + 340hp = legendary modern hot hatch. Same N55 + B58 buying checks as 3-Series / 5-Series / X3 / X4 entries. Pre-Feb 2015 N20 1.x i cars are different — see 1-Series F20/F21 entry. Cars 5-13 years old.

Asking: S$99k–114k
Median: S$107k
Decay: —

What's good

M140i (B58 inline-six, 2016-2019) with full BMW service history — the cult enthusiast pick. Same B58 family as M340i / 540i / 740i / X3 M40i / X4 M40i / 440i / M240i / X5 xDrive40i. The legendary modern hot-hatch combo (RWD + I6 turbo + ZF 8HP).
Pre-2016 M135i (N55) with documented service history — slightly less power than M140i but the simpler engine still has cult appeal. N55 with full service is durable.

What to watch

Missed oil intervals in the M135i/M140i service book — high-output BMW inline-sixes demand strict oil discipline. Without paperwork the long-term carbon + chain + HPFP risk is elevated.
ZF 8-speed auto shifting harshly past 100k km with no fluid change on record — ZF 8HP is widely durable but fluid changes at 60-80k km extend life. Without receipts the transmission is on borrowed time.

Trims in this generation

Pick a trim to see its score, deal target, and pre-purchase checklist.

ICE

3 trims

Common questions about the BMW M135i

Is the BMW M135i reliable?: In our read, the BMW M135i scores 55 out of 100 on brand reliability. That still varies by generation and how the individual car was looked after, so always check the service history before you commit.
What should I expect to pay for a used BMW M135i with a given mileage?: It depends on the exact variant, age and mileage — a higher-mileage car should ask less. Use the price modeller on this page to get a fair-price range for a specific age and mileage, so you know what to offer.
Where do these BMW M135i figures come from?: They're worked out from current used-BMW M135i listings in Singapore — asking prices, mileage and registration years — not past transaction prices. We refresh them regularly, and we flag thin data rather than guess.