Used BMW 323

What to know before buying: BMW 323

From 2 forum threads and 3 press tests · updated 11/10/2026

What the reviews say

• The 323i combines an inline-six and rear-wheel drive with everyday comfort and engaging handling for its era.[3]one source
• Smooth power delivery, balanced road manners and a communicative chassis are its principal driving strengths.[3]one source
• In an E46 owner discussion, the 323i and 328i engines are praised for longevity and reasonable oil and fuel consumption.[5]one sourceE46

Typical faults

• E36 and E46 rear-subframe mounting points can crack; E46 cars built through February 2000 are specifically identified as vulnerable.[3][5]E46

  1998–2000

• The cooling system can suffer water-pump failure, while the plastic expansion tank and thermostat housing may become brittle and crack over time.[3][5]E46

  M52/M54

• Hardened or leaking VANOS seals can cause a loss of low-rpm performance.[3]one source
• Engine oil can leak from the valve-cover gasket and oil-filter-housing gasket.[3]one source
• Front control-arm bushes and ball joints wear; E46 owners also report rear bushes and broken springs.[3][5]E46
• E46 323i/323Ci owners describe rough cold starts after sitting; individual cases were traced to old spark plugs or a split CCV vacuum hose.[1]one sourceE46
• On E46 models through 2001, the EWS immobilizer module can fail, leaving the starter inoperative despite a charged battery.[5]one sourceE46

  1998–2001

Which engine and version to take

• The source lists a 2.5-litre six-cylinder petrol engine for the 2000 323i; its smooth power delivery is a defining strength.[3]one sourceE46

What to check at the inspection

• On an E46, carefully inspect the rear-subframe mounts and boot floor for cracks, prior repairs and corrosion around welds.[3][5]E46
• Check coolant level and leaks at the radiator, hoses, pump, expansion tank and thermostat housing; loss of cabin heat can indicate low coolant.[2][3][5]E46
• Inspect around the valve cover and oil-filter housing for fresh oil or accumulated residue.[3]one source
• During the test drive, assess the front arms, bushes and ball joints, and inspect the rear bushes and springs.[3][5]E46
• Start the engine fully cold after it has sat: watch for shaking, misfires, stalling or hesitation, and inspect the plugs and CCV vacuum hoses.[1]one sourceE46
• Apply light load at 1,000–1,500 rpm and listen for whistling; the source suggests checking intake hoses after the airflow meter and the DISA valve.[4]one sourceE46
• Test the electric windows, cold starting and EWS operation, and inspect the bonnet and boot lid for rust.[5]one sourceE46

Verdict

Sources

1. [1]bmwslo.com — Ne delajo vsi cilindri ob zagonu - E46 · forum
2. [2]bmwpower-bg.net — Виж темата - БМВ 323ци ПРОБЛЕМ · forum
3. [3]kroniktamir.com — BMW 323i Kronik Sorunları · press
4. [4]forumai.bmw-klubas.lt — https://forumai.bmw-klubas.lt/viewtopic.php?p=1361... · press
5. [5]bmw-syndikat.de — 328i und 323i Probleme [ 3er BMW - E46 Forum ] · press

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