Mazda 323
2.0-litre DOHC four-cylinder from the F-series. Wide deployment from compact to mid-range, maintenance-friendly and long-lived.
Solid Compact
The 2.0L makes the 323 a brisk everyday car. Solid suspension, adequate power — an uncomplicated companion.
Engine Weaknesses 7
If the water pump is not replaced during a timing belt service, it can seize and snap the belt. Documented case: rocker arm, valve, and cylinder head damage. Parts cost alone around 700 EUR.
Symptoms: Screeching scraping followed by engine failure, no prior warning, engine can stop under full throttle
The FS intake manifold gasket hardens; the throttle body is prone to carbon build-up. Both together lead to rough idle and poor cold starting. One of the most common complaints in the 626 GF/GW forum.
Symptoms: Rough cold running, engine stalls when declutching, fluctuating idle, poor throttle response
HT leads and spark plugs are known wear items on the FS engine. Explicitly mentioned in the 626 GF collective fault thread. Faulty leads cause misfires.
Symptoms: Misfires, rough idle, surging under load, increased fuel consumption
The idle control valve wears from around 150,000 km. A sluggish or seized valve causes unstable idle and stalling. Cleaning often helps temporarily before replacement.
Symptoms: Idle fluctuates between 300 and 1,000 rpm, engine stalls when declutching, rough warm-up
The FS lambda sensor ages from around 100,000 km and responds too slowly. Fault code P0421 appears and fuel consumption rises. Engine keeps running but exhaust cleaning is impaired.
Symptoms: Check engine light on sporadically; fault code P0421 on OBD readout; measurable fuel consumption increase; engine otherwise runs fine.
The lower engine mount on the FS wears from around 100,000 km. Cracks in the rubber cause vibrations at idle and clunking on gear changes. Replacement part at Mazda dealer around 180 EUR, labour around 1 hour.
Symptoms: Vibrations at idle; clunking on pull-away or gear changes; engine visibly rocks when throttle is applied.
The FS valve cover gasket becomes porous from around 80,000 km. Oil loss at the sealing face and spark plug wells. A good opportunity to replace during a timing belt service. Gasket under 10 EUR.
Symptoms: Oil marks on the valve cover; faint burning smell; oil spots under the car; possibly oil in spark plug wells.
Vehicle Weaknesses 8
Typical rust spots on the BJ: lower door edges, rear wheel arches and sills. Lack of factory corrosion protection accelerates the problem. Inspect the underside and wheel arches thoroughly before buying.
ABS, TCS and handbrake warning lights illuminate simultaneously, commonly due to faulty wheel speed sensors. Sensors are inexpensive to replace; a defective control unit is expensive.
Wheel bearings, especially on the rear axle, wear at higher mileage. A faulty wheel bearing can also trigger ABS sensor faults. Replacement parts are available cheaply.
Tail light seals age and become porous, allowing moisture to enter the boot. Water can also collect under the sound-deadening mats in the wheel arch, accelerating rust.
Anti-roll bar rubbers and control arm bushings harden and wear, especially at higher mileage. Typical suspension noise over uneven road surfaces.
The blower resistor on the BJ fails frequently, after which the blower only operates on speed 4 (full voltage). The air conditioning also cuts out at the same time. The resistor behind the glovebox is inexpensive and straightforward to replace.
The handbrake cables on the BJ corrode over the years, becoming stiff or permanently seized. The rear brakes can lock in the applied position or fail to fully release. Particularly affects vehicles where the handbrake is rarely used.
The faux leather on the BJ's steering wheel detaches over time, peeling and becoming sticky. The most frequently touched grip areas at 9 and 3 o'clock are particularly affected. Typical for vehicles of this generation and age.