Parts for your 2016 Lexus Is-Starter motor

2016 Lexus IS starter motor — what’s fitted and what it means for owners

Technical documentation shows that whether a 2016 Lexus IS uses a conventional starter motor depends on the variant. Factory sources including the Lexus/Toyota New Car Features manual for the IS 300h (AVE30/35 Hybrid System), the Lexus Repair Manual (RM) for GSE31/GSE35 (IS 200t/IS 350), and the Toyota/Lexus Electronic Parts Catalogue confirm: petrol-only models (IS 200t/300/350) have a conventional 12‑volt starter motor, the hybrid IS 300h does not use a conventional starter motor, as engine starting is handled by Motor‑Generator 1 (MG1) within the hybrid transaxle.

On the IS 300h hybrid, a high‑voltage traction battery spins MG1 to crank the engine, so there’s no separate starter motor or alternator. The 12‑volt battery simply powers control units and closes system relays. This design delivers smooth, quiet starts, reduces wear on a ring gear and starter pinion, and cuts idle‑stop restarts without the click‑whirr of a traditional unit.

For 2016 Lexus IS petrol variants, the starter motor is the quiet achiever that gets everything moving. Fed by the 12‑volt battery, it engages a small pinion with the flywheel’s ring gear, cranks the engine to firing speed, then disengages as the engine takes over. When it’s healthy, starts are crisp and predictable, when it’s tired, owners may notice lazy cranking or an occasional single click from under the bonnet.

Starters aren’t a scheduled service item, but age, heat, and high kilometre use can take a toll. Common signs a replacement may be due include:

• Slow cranking or a rapid click with dash lights dimming
• Intermittent no‑crank despite a charged battery
• Grinding or whirring noises at start‑up

Basic care helps. Keeping the battery in good nick, cleaning terminals, and checking engine earth straps can prevent voltage‑drop issues that mimic a bad starter. If testing points to the motor or solenoid, replacement is straightforward on the 2.0‑litre turbo IS 200t (mounted low on the block and typically accessed from underneath). On the IS 350 V6, the starter often lives in the “V” of the engine and may require intake manifold removal, so labour time is higher.

When fitting a new unit, choosing a quality OE or reputable remanufactured starter is worth it. Technicians will verify ring‑gear condition, torque fasteners to spec, and confirm the charging system is healthy so the new starter isn’t handicapped by low voltage. Expect shorter book time on the 2.0‑litre turbo and a more involved job on the V6. For Australian and New Zealand owners, that usually translates to modest parts-and-labour on the IS 200t, and a larger chunk of labour on the IS 350 due to access.

Popular questions about the 2016 Lexus IS starter motor

Does the 2016 Lexus IS 300h have a starter motor?
For the hybrid IS 300h, there’s no conventional starter motor. The engine is cranked by Motor‑Generator 1 inside the e‑CVT using power from the high‑voltage battery, as detailed in Lexus/Toyota New Car Features for the IS 300h. The 12‑volt battery powers control systems and relays but doesn’t spin the engine.

Where is the starter motor on a 2016 Lexus IS?
On petrol models: the IS 200t’s starter is typically mounted low on the engine near the bellhousing and is accessed from underneath. The IS 350’s starter usually sits in the V of the V6 beneath the intake manifold, making access tighter and labour heavier. Exact placement and procedures are covered in the Lexus Repair Manual for the specific engine code.

How much does a 2016 Lexus IS starter replacement cost in AU/NZ?
Costs vary by engine and workshop. As a ballpark, owners in Australia and New Zealand often see a lower total on IS 200t due to easier access, and a higher figure on IS 350 because the intake manifold may need to come off. Pricing swings with parts choice (OE vs reman) and labour rates, so a quote with VIN and engine code is the most reliable guide.