Overview
Naturally aspirated 4.0L / 4.4L / 4.8L V8 used across the 5-, 6-, 7-Series and X5. Known for slow-coolant valley-pan issues.
Common models
E60 540i; E63/E64 645Ci/650i; E65 745i/750i; E53 X5 4.4i/4.6is; E70 X5 4.8i.
Supported live-data parameters
Beemuu’s N62 profile reads 13 parameters from the engine control module. 13 are marked verified — sourced from the OBDb DID database and confirmed against the project’s own OBDb-verified community data set. The remaining parameters are seeded from standard OBD-II PIDs or marked as BMW-specific but pending real-car verification.
Each parameter has a query path (either an OBD-II PID like obd:0C or a BMW-specific identifier) and a decoder (how raw bytes are converted to engineering units). The full schema is documented in docs/DECODE_FUNCTIONS.md.
| Parameter ID | Label | Unit | Query path | Decoder | Status |
|---|---|---|---|---|---|
rpm | Engine speed | rpm | obd:0C | u16_quarter | ✓ verified |
coolant | Coolant temp | °C | obd:05 | temp_u8 | ✓ verified |
oil | Oil temp | °C | obd:5C | temp_u8 | ✓ verified |
iat | Intake air temp | °C | obd:0F | temp_u8 | ✓ verified |
load | Engine load | % | obd:04 | percent_a | ✓ verified |
throttle | Throttle position | % | obd:11 | percent_a | ✓ verified |
map | Manifold pressure | kPa | obd:0B | u8 | ✓ verified |
speed | Vehicle speed | km/h | obd:0D | u8 | ✓ verified |
volt | Module voltage | V | obd:42 | u16_milli | ✓ verified |
ambient | Ambient temp | °C | obd:46 | temp_u8 | ✓ verified |
fuel_rate_lh | Engine fuel rate (L/h) | L/h | obd:5E | u16_fiftieths | ✓ verified |
engine_runtime | Engine runtime | s | obd:5F | u32_be | ✓ verified |
fuel_rate_gs | Engine fuel rate (g/s) | g/s | obd:62 | u16_half | ✓ verified |
Common N62 faults worth scanning for
Valley-pan coolant leaks (the gasket under the intake manifold fails and coolant slowly disappears); rear main seal oil leaks on higher mileage; thermostat housing failures; valve-cover gasket leaks.
For BMW-specific fault codes that come up on the N62, see the DTC index — particularly the fuel-pressure, VANOS and boost-pressure families. The project’s community opinions have per-code repair paths contributed by owners and indie technicians.
N62 questions
What is the N62 engine?
Naturally aspirated 4.0L / 4.4L / 4.8L V8 used across the 5-, 6-, 7-Series and X5. Known for slow-coolant valley-pan issues.
How do I connect Beemuu to a N62 car?
KWP2000 is the standard. E-series N62 uses KWP2000 over K+DCAN; F/G-series N62 uses UDS over DoIP via an ENET cable.
What live-data parameters does Beemuu read?
13 parameters; 13 verified, the rest seeded and pending real-car validation.
What should I check first?
Valley-pan coolant leaks (the gasket under the intake manifold fails and coolant slowly disappears); rear main seal oil leaks on higher mileage; thermostat housing failures; valve-cover gasket leaks.