
BMW Models
BMW 1 Series
E81 | E81 LCI | E82
E87 LCI | E88
BMW 3 Series
E90 | E90 LCI | E91 | E91 LCI
E92 | E92 LCI | E93 | E93 LCI
BMW 5 Series
E60 LCI | E61 LCI | F10 | F11
BMW 6 Series
E63 LCI | E64 LCI

INDEPENDENT BMW ENGINE EXPERTISE
NOXEM series NOx emulator will restore the initial power, economy and smooth run of your car’s engine!
01 / UNDERSTAND YOUR ENGINE

BMW 1 Series
E81 | E81 LCI | E82
E87 LCI | E88
BMW 3 Series
E90 | E90 LCI | E91 | E91 LCI
E92 | E92 LCI | E93 | E93 LCI
BMW 5 Series
E60 LCI | E61 LCI | F10 | F11
BMW 6 Series
E63 LCI | E64 LCI

BMW N43 Series engine
N43B16 | N43B20
116i | 118i | 120i | 318i | 320i | 520i
BMW N53 Series engine
N53B25 | N53B30
325i | 330i | 523i | 525i | 530i | 630i (E series)
523i | 528i | 530i (F series)

restores
Fuel economy
Smooth idle
Even run at mid/high loads
Full functionality of engine
No more:
30E9; 30EA; 2EAE; 2AF2; 2AF6; 30DA; 30E0; 30E6; 180401; 12C704; etc..
02 / ENGINEERED WITH PURPOSE
Understand the symptoms.
See what NOXEM is designed to restore.

for engine problems
NOx converter error messages:
30EA; 30E9 (for E series)
180401 (for F series)
NOx sensor error messages:
2AF2; 2AF4; 2AF6; 2EAE...
Increased fuel consumption
Rough idle, uneven run and misfires
Difficult start of cold engine

No need to replace
the NOx catalytic converter!
Save 2000 .. 3000 EUR
No more never-ending stories:
injectors replacement
ignition coils replacement
spark plugs replacement
Lambda probes replacement...

Alternative for
11787587129
11787587130
11787590402
Plug and play
Lifetime up to 300’000 km
Over-voltage and wrong polarity protection
Industrial temperature range components
03 / FROM SYMPTOM TO SOLUTION
A closer look at NOx system faults,
engine behaviour and the next steps.
If you drive BMW with petrol N43/N53 series engine and the engine
pay attention to error messages stored in the engine control unit. If the error messages regarding NOx system
replace the OEM NOx sensor with NOXEM series NOx emulator!
The original NOx sensor costs at least EUR 550, NOx catalytic converter – EUR 5000 .. 7000, a lifetime of both items typically do not exceed 100’000 km.
The cost of NOXEM NOx emulator is lower than the cost of NOx sensor, the average lifetime of it – at least 300’000 km, and there is no need to replace the expensive NOx catalytic converter! In addition – thanks to lower fuel consumption, NOXEM NOx emulator will fully payback after 30’000 .. 40’000 km.
The installation of NOXEM NOx emulator is quick and simple, it doesn’t require intervention in the electronics and exhaust system. You will be able to switch back to the original exhaust solution at any moment if you will decide to do that.
Here you can find detailed information about the most popular N43/N53 series engine problem and here – how to check NOx system performance (E series) (F series).
Note: Problems with NOx system (NOx sensor and/or NOx catalytic converter) usually are the reason of following errors (E series; typical situation):
Also, error messages regarding fuel trim usually appear. Problems with NOx system also can be the reason of: error messages relating (individual or all) cylinders misfires; low efficiency of CO catalytic converter, 1st/2nd Bank; Lambda probes; incorrect fuel trim (cylinders individual or Bank).
Reduce fuel consumption by 15 .. 20%
Compared with engine with problems (errors) relating to NOx catalytic converter and/or NOx sensor
Restore smooth operation on idle and at low load
Re-enable offset type LTFT at idle and cylinders individual mechanical and fuel mixture corrections
Restore smooth operation at mid/high loads
Re-enable normal operation of multiplicative type LTFT and cylinders individual fuel trims
Facilitates the start of a cold engine
Re-enable additional cold engine LTFT
No more problems and inexplicable error messages relating fuel trim, misfire, CO catalytic converters
04 / INSIDE THE ENGINEERING

Electrical characteristics
05 / THE KNOWLEDGE BASE
DIAGNOSIS & COMPATIBILITY
List of affected vehicles
List of NOx system error messages
How to evaluate the performance of the NOx sensor (E series)
Diagnostics of NOx sensor (F series)
Replacement of NOx sensor
06 / A SPECIALIST’S PERSPECTIVE
READY FOR THE NEXT STEP?