Vehicle
Tata Zest
The saloon half of the pair that introduced Tata's own Revotron petrol engine, and the model where the marque's modern electronics start. It shares its platform, its engines and most of its faults with the Bolt hatchback, so a write-up for one is worth reading for the other.
The two engines come from opposite lineages and that decides the diagnosis. The 1.2 Revotron is Tata's own turbocharged three-cylinder petrol, barely documented in English; the 1.3 Quadrajet diesel is a Fiat Multijet built at Ranjangaon, so Fiat's common-rail conventions, part numbers and fault patterns apply to it directly. Establishing which is fitted decides which body of knowledge is relevant, and the badge on the boot is the only thing that says so.
The five-speed automated manual offered on the petrol is a clutch actuator on a manual gearbox rather than a torque converter: its complaints are actuator position and clutch temperature, they appear in stop-start traffic, and they read as gearbox failure to somebody expecting an automatic.
Generations
-
First generation 2014–2019
Tata's own Revotron petrol beside a Fiat-built diesel, on the X1 platform — two lineages, two bodies of knowledge.
- Body styles
- Sedan
- Platform
- Tata X1
- Engines
-
- 1.2 turbo — REVOTRON · petrol · 66 kW (89 hp) · 140 Nm (103 lb-ft)
- 1.3 Quadrajet — SDE · diesel · 55 kW (74 hp) · 190 Nm (140 lb-ft) · the Fiat Multijet built at Ranjangaon — Fiat common-rail conventions apply
- Transmissions
- 5-speed manual · 5-speed automated manual
- Drivetrain
- Front-wheel drive
Information, not instruction
CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.
Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Posted about the Tata Zest
Be the first to write this up
Nothing posted about this yet. Whatever you found is worth writing down — even a dead end saves someone the same afternoon.
What makes one worth reading:
- The car — make, model, year and engine. The same fault behaves differently on each.
- What you measured, not only what you replaced.
- What actually fixed it — or that nothing did, which is worth knowing too.
Sign in or create an account to add what you found about Tata Zest.