| NMK |
Null Mengen Kalibrierung |
| NMOG |
Non Methane Organic Gases |
| NMVOC |
Non Methan ??? |
| NO |
Nitrogenium Oxide |
| NO2 |
Nitrogenium DIOxide |
| NOK |
Normal Otto Kraftstoff |
| NOS |
New Old/Original Stock |
| NOX |
NitrogeniumOxides (Stickoxide) |
| NOX |
Nitrogen OXides |
| NOx |
Nitrogenium Oxides |
| NR |
NiveauRegulierung |
| NR |
Niveauregelung |
| NSC |
Nox Storage Component |
| NTC |
Negative Temperature Coefficient |
| NVAP |
?? |
| NVC |
Nominal Voltage Calibration |
| NVH |
Noise Vibration Harshness |
| NVLD |
Natural Vacuum Leak Detection |
| NW |
Nockenwelle |
| NZ |
Neuseeland |
| O/E |
Optical - Elektric |
| O2 |
oxygen |
| OASIS |
Online Automobile Service Information System |
| OBD |
On Board Diagnose |
| OBD2 |
On Board Diagnostics (second generation) |
| OBM |
On Board Messsystem |
| OBU |
On Board Unit |
| OC |
Occupant Classification |
| OC |
Oxidation Converter |
| OCIL |
Overdrive Cancel Indicator Light |
| OCS |
Occupant Characterization System |
| OCS |
Overdrive Cancel Switch |
| OCT ADJ |
Octane ADJust device |
| OCV |
Open Circuit Voltage |
| OD |
Outside Diameter |
| OD |
OverDrive |
| ODB |
Offset Deformable Barrier crash |
| OE |
Original Equipment |
| OEM |
Original Equipment Manufacture |
| OFW |
OberFlächenWellen |
| og |
Orange |
| OHC |
OverHead Camshaft |
| OHV |
OverHead Valves |
| OK |
Otto-Kraftstoff |
| OM |
Oman |
| OMM |
OberflächenMicroMechanik |
| OOP |
Out Of Position |
| OPEC |
Organisation of Pertol Exporting Countries |
| ORC |
Oxidation Reduction Catalyst |
| ORVR |
Onboard Refueling Vapour Recovery System |