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Top issues
17 known problems · 5 high
high
Body and chassis rust
All engines
high
Timing belt failure
3 of 5 engines
high
Cylinder head warping / cracking after overheat
2 of 5 engines
Recalls
2 on recordPRA 2003/6404
2003-08-12
Defect: Excessive bonnet-to-stopper free play may allow the bonnet striker to wear and eventually break through.
Hazard: Bonnet could release unexpectedly while driving.
Remedy: Mazda dealer inspection/repair, free of charge.
Affected: Mazda B-Series / Bravo
Official notice: www.productsafety.gov.au · details checked 2026-09-30
PRA 2015/14760
2015-06-10
Defect: Takata airbag inflator propellant may degrade when exposed to a combination of high temperature and humidity.
Hazard: Inflator rupture in a crash, risking metal fragments striking occupants.
Remedy: Mazda dealer replaces the affected airbag inflator, free of charge.
Affected: Mazda B2500 (UN) and B2600 (UN)
Official notice: www.productsafety.gov.au · details checked 2026-09-30
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Before and after
Before: Mazda B-Series (pre-1985)
Price (AUD)
$3k-$16k
Body styles
Single Cab, Freestyle Cab (extra cab), Dual Cab
Drivetrain
RWD (4x2), Part-time 4WD (4x4, dual-range)
Origin
Japan
Built in
Japan
Overview
The Mazda Bravo is the Australian name for Mazda's B-Series ute, and across this long run it was effectively the same vehicle as the Ford Courier — Mazda and Ford co-developed and shared the platform, with the Bravo being the Mazda-badged version built in Japan. It spans two clearly different shapes: the older UF series (1985-1998, square-edged) and the more modern UN series (1998-2006, rounder, with the suicide-door 'Freestyle Cab' added). Engine choice drives the buying decision: the petrol 2.6L (G6/G6E) is the simple, durable workhorse motor most UF and UN Bravos carry; the UN B2500 diesel came as a gutless naturally aspirated WL and a much more useful turbo WL-T; and right at the end (2005-2006) a 4.0L Cologne V6 'B4000' arrived. The big caveats are well known in Australia: the WL/WL-T diesel head is prone to cracking at high km, all of these engines are timing-BELT driven (a snapped belt on these interference-risk motors is costly), and as old, hard-worked trade utes most have rust and tired leaf-sprung rear ends. A solid, honest budget 4x4 — not a Hilux for resale, but cheap to buy and simple to fix. Replaced by the BT-50 in late 2006.
Engines & variants
2.2L F2 petrol (B2200)
Engine
2.2L SOHC carburettor/EFI petrol I4 (entry workhorse, UF)
Engine code
F2
Config
I4 NA
Displacement
2184cc
Power
~63kW
Torque
~170Nm
Drivetrain
RWD (4x2)
Economy
11-13 L/100km
Tow (braked)
1500-1800kg
Tow (unbraked)
750kg
Transmission
5MT
Timing chain / belt / gear
Belt-driven, replace every 100,000km
Pros
- Dead-simple, cheap to run and fix
- Tough little workhorse four, plenty in wreckers
- Lightest and cheapest UF Bravo to buy
- No diesel complexity or turbo to worry about
Cons
- Underpowered, slow when loaded
- Carburettor examples need a tuner who knows them
- Only 2WD in most B2200 trims
- All examples are now very old and high-km
Known problems
low
Carburettor / fuel-mix issues (early carb cars)
Early carburetted F2 engines run rough, flat-spot or stall as the carb wears, jets gum up and the auto-choke ages. Hard hot starts and poor idle are common on neglected examples.
Fix: Carburettor rebuild/clean and tune by someone familiar with older Mazdas; fresh fuel lines and filter.
high
Timing belt neglect
These are belt-driven and most examples are decades old with unknown belt history; a snapped belt risks valve-to-piston contact and major engine damage.
Fix: Replace the timing belt, tensioner and water pump as a set on purchase if history is unknown.
2.6L G6/G6E petrol (B2600)
Engine
2.6L SOHC EFI petrol I4 (Mazda's mainstay Bravo petrol, UF and UN)
Engine code
G6 / G6E
Config
I4 NA
Displacement
2606cc
Power
83-92kW
Torque
195-206Nm
Drivetrain
RWD (4x2) / Part-time 4WD
Economy
12-14 L/100km
Tow (braked)
1800-2500kg
Tow (unbraked)
750kg
Transmission
5MT, 4AT
Timing chain / belt / gear
Belt-driven, replace every 100,000km
Pros
- The proven, simple Bravo workhorse engine
- More usable torque than the 2.2 and quieter than the diesel
- Available in 4x4 - a genuinely cheap budget tourer
- Cheap to buy and dirt-cheap parts
- No turbo, DPF or common-rail injectors to fail
Cons
- Thirsty for its size and modest power
- 12-valve head can warp/crack if overheated
- Lower resale than equivalent Hilux/Navara
- Most are tired ex-trade utes
Known problems
high
Cylinder head warping / cracking after overheat
The 12-valve G6 head is known to warp, crack or 'go soft' if the engine is ever overheated (tired radiator, fan clutch, head-gasket weep). Symptoms: coolant loss, white exhaust, oil/coolant mixing, overheating under load.
Fix: Keep the cooling system fresh; address any overheat immediately. Repair = head skim or replacement and gasket; check the block for cracks.
high
Timing belt failure
Belt-driven engine; with most cars decades old and belt history unknown, a snapped belt can wreck valves.
Fix: Replace timing belt, tensioner and water pump together on purchase if records are missing; stick to the 100,000km interval.
low
Oil leaks and tired ancillaries
Rocker cover, front and rear main seals weep with age; distributor, hoses and engine mounts perish on these older petrol fours.
Fix: Reseal as needed; budget a consumables refresh on an older example.
2.5L WL naturally aspirated diesel (B2500)
Engine
2.5L SOHC indirect-injection diesel I4, naturally aspirated (UN)
Engine code
Config
I4 NA diesel
Displacement
2499cc
Power
~58-64kW
Torque
~160-190Nm
Drivetrain
RWD (4x2) / Part-time 4WD
Economy
9-10 L/100km
Tow (braked)
1800-2500kg
Tow (unbraked)
750kg
Transmission
5MT
Timing chain / belt / gear
Belt-driven, replace every 100,000km
Pros
- Frugal and very simple mechanical diesel
- No turbo to fail, cheap and easy to service
- Same tough bottom end as the WL-T
- Long-legged and economical for light duties
Cons
- Genuinely slow and gutless, especially loaded or in 4x4
- Struggles to tow or climb at highway pace
- Same head-crack tendency as the WL-T
- Less desirable than the turbo - but cheaper
Known problems
high
Cylinder head cracking
The WL diesel head develops hairline cracks at high km; it can pressure-test fine cold but open up hot, slowly burning coolant. Symptoms: gradual coolant loss, overheating, mayonnaise in the oil filler.
Fix: Pressure-test hot; replace or properly repair the head with a quality gasket. Keep the cooling system healthy to delay it.
high
Timing belt failure
Belt drives both the camshaft and the injection pump; a failure stops the engine and risks valve damage. On older cars the belt history is often unknown.
Fix: Replace the timing belt, tensioner, idlers and water pump as a kit at 100,000km / on purchase if undocumented.
medium
Injector pump / injector wear
The mechanical injection pump and injectors wear at high km, causing hard cold starts, white/black smoke and lost power.
Fix: Diesel-specialist pump and injector service/rebuild; check timing of the pump.
2.5L WL-T turbo diesel (B2500)
Engine
2.5L SOHC 12-valve indirect-injection turbo diesel I4, intercooled (UN)
Config
I4 turbo diesel
Displacement
2499cc
Power
~86kW
Torque
~280Nm
Drivetrain
RWD (4x2) / Part-time 4WD
Economy
9-11 L/100km
Tow (braked)
2500kg
Tow (unbraked)
750kg
Transmission
5MT
Timing chain / belt / gear
Belt-driven, replace every 100,000km
Pros
- Far more usable than the NA diesel - good low-down torque
- Frugal for a 4x4 ute of the era
- Simple pre-common-rail diesel, no DPF or fragile high-pressure injectors
- The Bravo diesel most people actually want
- Cheap to buy as a budget tourer/work ute
Cons
- Head cracking is the well-known Achilles heel
- Only ever offered with a 5-speed manual
- Indirect-injection is noisier and less refined than rivals
- Hard-worked/towing examples cook the head sooner
Known problems
high
Cylinder head cracking (the classic WL-T fault)
WL-T heads are notorious for developing hairline cracks around 200,000km. They often pressure-test fine cold but open up once hot, slowly burning coolant. Watch for unexplained coolant loss, white smoke when warm, and oil/coolant contamination.
Fix: Pressure-test the head hot before buying; replace or properly repair with an updated head and quality gasket. A healthy cooling system (radiator, fan clutch, thermostat) extends head life.
high
Timing belt failure
The belt drives the cam and the injection pump; failure stalls the engine and can bend valves. Many high-km examples have unknown belt history.
Fix: Replace timing belt, tensioner, idlers and water pump as a kit at 100,000km or immediately if records are missing.
medium
Cold-start smoke / injector and fuel-contamination issues
Heavy cold-start smoke and rough idle commonly trace to worn/clogged injectors, water-contaminated fuel, weak glow plugs, or a tired injection pump.
Fix: Drain/clean fuel system, replace fuel filter and glow plugs, test and service injectors and pump at a diesel specialist.
medium
Turbo and intercooler oil contamination
Worn turbo seals push oil through the intercooler and intake; symptoms are oily intake plumbing, blue smoke and lost boost.
Fix: Inspect/replace turbo, clean or replace the intercooler and intake plumbing, fit/maintain a catch can.
4.0L Cologne V6 petrol (B4000)
Engine
4.0L SOHC Ford 'Cologne' V6 petrol, late-run flagship (UN)
Engine code
Config
V6 NA
Displacement
3956cc
Power
~152kW
Torque
~315Nm
Drivetrain
RWD (4x2) / Part-time 4WD
Economy
14-16 L/100km
Tow (braked)
2500kg
Tow (unbraked)
750kg
Transmission
5MT, 5AT
Timing chain / belt / gear
Chain-driven
Pros
- Strong, smooth V6 - by far the most powerful Bravo
- Chain-driven timing (no belt to replace)
- Rare and the last/flagship Bravo before the BT-50
- Easy effortless towing and highway pace
- Shares the proven Ford Courier/Ranger V6 driveline
Cons
- Very thirsty - a petrol V6 in a heavy 4x4 ute
- Only sold for two years, so examples are scarce
- Auto can be sluggish and uses more fuel again
- Few buyers want petrol, so it sells cheap (good for buyers)
Known problems
low
Fuel thirst
Not a fault, but a 4.0 petrol V6 in a heavy ute drinks 14-16+ L/100km, worse when towing. This is why they sell cheaply.
Fix: Accept the fuel bill or fit a quality LPG conversion - the Cologne V6 takes gas well.
medium
Timing chain rattle / guide wear
The Cologne V6 can develop timing chain and tensioner/guide wear at high km - a rattle on cold start.
Fix: Replace chain, tensioners and guides; use correct-grade oil and keep up with changes.
low
Coolant and oil leaks
Intake/coolant gaskets and the usual seals weep with age and heat cycling.
Fix: Replace gaskets and seals as part of routine servicing.