GARAJO.CO.UK

Plan d’maintenance BMW 3 Series Convertible E46
Logo BMW

Online service book

Créer mon service book
Generations :Série 3 Cabriolet E46Série 3 E36Série 3 E46Série 3 E90Série 3 F30Série 3 G20Série 3 Cabriolet E36Série 3 Cabriolet E93Série 3 Compact E36Série 3 Compact E46Série 3 Coupé E36Série 3 Coupé E46Série 3 Coupé E92Série 3 Gran Turismo F34Série 3 Touring E36Série 3 Touring E46Série 3 Touring E91Série 3 Touring F31Série 3 Touring G21All →
Logo BMW

📖BMW 3 Series Convertible E46: a timeless open-top cruiser requiring diligent mechanical and hood care

BMW 3 Series Convertible E46 (2000-2003)

The BMW 3 Series Convertible E46 retains the clean, elegant lines of the coupe while adding genuine four-seater grand touring capability. It stands as one of the most desirable open BMWs of its era, yet beneath the sleek bodywork it remains a thoroughbred E46 with all its known mechanical sensitivities. Structured BMW 3 Series maintenance focusing on cooling, crankcase ventilation and front suspension health matters far more than paintwork condition or interior trim.

Straight-six petrol variants like the 320Ci, 325Ci and 330Ci offer the most harmonious driving experience. On these cars, the electro-hydraulic fabric soft-top requires scrutiny as a complex mechanical assembly in its own right: roof hydraulic rams, tension straps, rear screen seals and drainage channels in the hood compartment must operate faultlessly before assessing dynamic appeal.

Suivi free

Entrez votre number plate d’number plate afin de suivre freeement votre 3 Series Convertible E46

Garajo prépare votre garage et vous permet ensuite de suivre les maintenances, les rappels et les points à surveiller.

UKGB

Owner notes

The reassuring points, known weak spots and deadlines you should not let slip.

Reassuring points

Reliability
  • Silky M52TU and M54 straight-six engines delivering durability once cooling and crankcase breather systems are refreshed.
  • Practical four-seater convertible packaging combined with classic, enduring styling.
  • Excellent parts availability and enthusiast specialist support compared to more modern BMW convertibles.

Chronic weak spots

Keep an eye on
  • Fabric soft-top mechanism: inspect hydraulic pump fluid level, wiring harness hinges and microswitch operation.
  • Rainwater ingress: check front carpets, boot floor and convertible top stowage compartment for dampness.
  • Cooling system overhaul: expansion tank, thermostat, water pump and plastic hoses degrade with age and heat.
  • Front suspension: lower control arms, rear bushes and top mounts fatigue quickly under the heavier convertible body.
  • VANOS and oil leaks: listen for metallic camshaft rattle and inspect rocker cover and oil filter housing gaskets.

Critical deadlines

Do not miss
  • Engine cooling circuit refresh: overhaul expansion tank, thermostat and water pump before 120,000 km or 8 years.
  • Brake fluid and soft-top pivot lubrication: complete every 24 months regardless of low annual mileage.
  • Automatic gearbox and rear differential fluid service: schedule renewal every 80,000 km to preserve shift quality.
  • Front wishbone bushes and suspension alignment: check every 30,000 km to prevent uneven front tyre wear.

Fréquences d'maintenance recommandées

Service markers for petrol/diesel versions. Exact intervals vary by engine and model year.

Oil change

Every 15 000 km

Every 1 year

Service

Every 15 000 km

Every 1 year

Brake pads

Every 40 000 km

Every 2 years

Timing belt / chain

Timing chain - designed to last, no scheduled replacement

Battery (12 V)

Every 50 000 km

Every 4 years

Powertrains and average consumption

Average consumption from manufacturer data for the versions available in this generation.

Petrol and diesel powertrains
▾

Petrol, diesel or LPG versions. The intervals shown cover the usual mechanical jobs.

3 Series Convertible (E46)

Estimated average budget

Premium cost

Servicing a BMW 3 Series Convertible E46 sits about 44% above the market average (premium positioning).

Simple oil change~140 €
Full service~470 €
Front brake pads~220 €
Tyres (set of 4)~400 €

Timing chain: no scheduled replacement.

* Indicative estimates for parts and labour.

Frequently asked questions about BMW 3 Series Convertible E46

What are the common problems on the 3 Series Convertible E46?▾
3 Series Convertible E46 owners should especially watch: Fabric soft-top mechanism: inspect hydraulic pump fluid level, wiring harness hinges and microswitch operation. Rainwater ingress: check front carpets, boot floor and convertible top stowage compartment for dampness. Garajo includes these watch points so you can act early.
Does the 3 Series Convertible E46 timing chain need to be replaced?▾
The 3 Series Convertible E46 engine uses a timing chain designed to last the life of the engine, with no scheduled replacement. Listening for noise during a service is enough.
Where can I find the service book for the BMW 3 Series Convertible E46?▾
Garajo offers a free digital service book, always up to date, with reminders and a detailed history for your BMW 3 Series Convertible E46.
How much does it cost to service a BMW 3 Series Convertible E46?▾
The service budget for a BMW 3 Series Convertible E46 sits about 44% above the market average (premium positioning). Allow about 470 € for a full service, for example. Garajo estimates your budget by powertrain and tracks what you actually spend, for free.
Which BMW 3 Series Convertible E46 powertrain is best for town use?▾
This model is only available as petrol/diesel. Fuel mix: 8 petrol versions. In town, prefer the most economical, well-serviced petrol/diesel version.
Which BMW 3 Series Convertible E46 powertrain should you choose if you mostly drive on the motorway?▾
This model is only available as petrol/diesel. Fuel mix: 8 petrol versions. On the motorway, prefer petrol/diesel versions with the best power-to-consumption compromise.
← All Série 3 generationsAll BMW models

À lire aussi

Nos guides liés à ce modèle

Ne ratez plus jamais un maintenance

Gérez l'maintenance de votre BMW 3 Series Convertible E46 freeement.
Centralise your history and spending in a few clicks.Téléchargez le service book de votre BMW 3 Series Convertible E46 en PDF à tout moment.

Créer mon carnet (Free)
Créer mon service book