Credov

Holden Commodore ZB common problems: what to check before you buy

Credov's researched list of the 2 faults the Holden Commodore ZB is known for (2018–2019), 1 of them serious or costly. Each one says what to look for when you check the car, so you can spot it before you buy. Not every car has these faults: they are the ones worth checking on this model.

Known problems on the Holden Commodore ZB

Diesel hose rubbing fault

Safety risk

2018–2020 · 2.0 turbo diesel · diesel · Engine

What to look for: Look for chafing under the fuel hose clips and diesel stains around the exhaust, and smell for diesel.

Why it matters: Diesel on a hot exhaust is a fire risk; small volumes but easy to confirm.

Sources: 1 2

Rear seat frame weld recall

Keep an eye on

2018–2019 · Body and structure

What to look for: Ask GM/Holden NZ customer care to check whether this VIN is on the rear seat frame recall list.

Why it matters: Rear-impact injury risk on a VIN-listed batch; a two-minute check.

Sources: 1

Got a question about a Holden Commodore ZB? Ask Credov: a noise, a warning light, a part or how to fix it.

Also check on every car

On top of the faults above, every Credov inspection covers the basics: fuel smell, leaks or filler rust, engine oil leaks, power steering fluid leak, drive belt cracks or squeal, rust underneath: chassis and mounts, engine mounts, engine oil level and colour, coolant level, colour and leaks, head gasket failure signs, cold start: rattle, knock or smoke, rough or hunting idle, engine running hot on gauge, gearbox or diff oil leak, swapped gearbox without lvv and more.

Other Holden models

Researched by Credov from manufacturer recalls and service bulletins, owner reports and workshop sources. Repair prices are typical ranges, not quotes. See also fault codes and repair costs.