The Quick Answer above is the generic definition. What follows is what is documented for the BMW models that log P0205, checked against manufacturer data and owner reports.
DTC/P0205·BMW
P0205 on BMW: Causes, Symptoms and Fix Cost
Quick Answer
Moderate SeveritySafe to drive (short-term)BMW
P0205 on a BMW means the engine control unit detected an electrical fault (open circuit, short, or out-of-range resistance) in the wiring or driver for the cylinder 5 fuel injector. It appears on engines with five or more cylinders. The injector itself may be fine while the wiring, connector, or ECU driver is at fault. Left unrepaired it causes a cylinder 5 misfire. Typical repair runs about 60 to 350 EUR depending on whether it is wiring or a replacement injector.
Repair cost on BMW€5 - €700
Connect any standard Bluetooth OBD2 adapter to your BMW and Skanyx tells you what P0205 means on that engine, whether it is safe to keep driving, and what the fix should cost. Free on iPhone and Android.
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BMW 3 Series
2005-2024The inline-6 petrol (N52, N54, N55, B58) and diesel (M57, N57) engines all have a cylinder 5. Petrol injector faults are usually connector corrosion or chafe, while N57/M57 diesel common-rail injectors are costly and need injector coding after replacement via Carly, ISTA, or a workshop. Skanyx reads the generic circuit code and misfire codes only.
What causes P0205 on a BMW?
Beyond the generic causes listed on the main P0205 page, these are the documented BMW-specific patterns:
BMW 3 SeriesCorroded or loose injector connector on inline-6 petrol
BMW 3 SeriesDiesel common-rail injector failure requiring coding on M57/N57
How to diagnose P0205 on a BMW with OBD2
Follow these steps to pinpoint the root cause of P0205:
- Read the stored code and freeze frame with Skanyx to confirm it is P0205 and note the conditions (RPM, load, coolant temp) when it set
- Check for a companion P0300 random misfire code, which points to a genuine combustion problem on the affected cylinder
- Inspect the cylinder 5 injector connector and harness for corrosion, looseness, melted pins, or chafing
- With the engine off, measure the injector winding resistance with a multimeter and compare against the workshop spec (most petrol injectors read roughly 12-17 ohms)
- Check for the injector control and supply circuits with a multimeter or test light, and swap the suspect injector to another cylinder to see if the fault follows it
- Note that per-injector coding, flow balance, and quantity-correction values are not on generic OBD2 - read those with a brand tool such as Carly, OBDeleven, or XENTRY, or have a workshop verify them
How much does P0205 cost to fix on a BMW? (EUR)
Estimated repair costs for P0205 in EUR, compiled across makes. Expect BMW parts and labour towards the upper end of each range.
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
Related codes that often appear with P0205 on BMW
These codes commonly cluster with P0205 on BMW vehicles:
Looking for the full P0205 reference (all makes, full diagnosis flow, complete repair cost matrix)?
See the main P0205 guideSkanyx · BMW
Diagnose P0205 on your BMW
Your car logged P0205. Skanyx reads it on any standard Bluetooth OBD2 adapter, tells you whether it is safe to keep driving, and shows the €5-€700 repair range so you know the number before a shop quotes you. Free on iPhone and Android, and you do not need to be a mechanic to read it.
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