bmw 320i 2006 problems

The 2006 BMW 320i (E90) can be a delight when cared for, and a grumpy gremlin farm when it’s not. Common issues include the usual Bavarian oil leaks, age‑worn cooling bits, and electrics doing interpretive dance.

• Oil leaks: valve cover and oil filter housing gaskets, plus weepy sump—sniff for burnt oil and check for residue.
• Timing gear: chain/tensioner wear on the four‑cyl can cause cold‑start rattle; ignore it at your wallet’s peril.
• Ignition/fuelling: coil packs and plugs, VANOS solenoids, and PCV/CCV parts causing rough idle and fault codes.
• Cooling system: plastic tanks/hoses and thermostats age out; overheating is game over.
• Auto trans: mechatronic sleeve/connector leaks and old fluid lead to flares or harsh shifts.
• Suspension/electrics: front control arm bushes, window regulators, and the odd sensor having a sulk.

If it’s quiet on cold start and runs cool, you’re halfway to happy motoring. Buy on service history, get a pre‑purchase inspection, scan for codes, and keep a repair kitty—future you will be chuffed.