Mitsubishi ASX 1.6 (4A92) Engine Replacement Compare Prices & Get Quotes

A rebuilt 4A92 engine supply-only typically costs £1,200-£2,200, with used units from £400-£900 and reconditioned from £900-£1,800 [ESTIMATED - using nearest-family proxy 2ZR-FE 1.8 from Table A]. Fitted costs add £390-£650 labour at an independent specialist, bringing the total to £1,500-£2,800 for a fitted rebuilt engine.

The most common early warning is a rattling noise on cold start that lasts 1-2 seconds, caused by a worn hydraulic tensioner . As wear progresses, you may notice rough idle, poor fuel economy, sluggish performance, or a check engine light with cam/crank correlation codes (P0016/P0017) .

• Rattling at cold start that persists more than a few seconds
• Metallic debris in the oil during service
• Check engine light with timing correlation faults

For a 2014-2019 ASX 1.6 valued at £5,000-£14,000 , a rebuilt engine at £1,200-£2,200 supply-only (£1,500-£2,800 fitted) is typically well within the vehicle's value. For very early 2010-2013 examples valued under £4,000, a used engine is often more cost-effective than a rebuilt unit.

A typical 4A92 engine replacement takes 7-10 hours of labour at an independent specialist [estimated from standard 1.6-litre transverse four-cylinder fitting time]. Supply-only engines are usually delivered within 3-5 working days, with supply-and-fit turnaround typically 3-5 days from booking to collection.

The 2.0-litre petrol (4B11) produces 147 hp, while the 1.6 (4A92) produces 117 hp . The 4A92 is more fuel-efficient (up to 48.7 mpg combined) and carries a lower insurance group, but the 4B11 offers significantly more performance . Both use timing chains, but the 4A92's timing chain is a more common replacement item at high mileage.

With regular oil changes using 5W-30 and timely attention to timing chain wear, the 4A92 can achieve 150,000-200,000 miles . Oil consumption from piston ring wear typically becomes noticeable after 100,000 miles, and timing chain wear often requires attention between 80,000-150,000 miles.