What is a BMW EAC sensor?
What is the purpose of the Engine Radiator’s Environmental Air Catalyst (EAC) Sensor? The EAC Sensor is there to prevent a catalytic coated radiator that requires replacement in conjunction with performing some other repair from being removed and replaced with a standard non- catalytic coated engine radiator.
What is the sensor on the side of the radiator?
The coolant temperature sensor, also known as the coolant temperature switch, is the engine management system that monitors the temperature of the coolant and relays this information to the ECM.
What is the difference between N51 and N52?
The N51 engine is a SULEV version of the N52 that was sold in parts of the United States that had SULEV legislation. Differences to the N52 versions include a variable-length intake manifold (“DISA”) with three stages instead of one, and a compression ratio lowered from 10.7:1 to 10.0:1.
What is covered under SULEV warranty?
If any emission-related part on your vehicle is defective, the part will be repaired or replaced by BMWNA. This is your emission control system DEFECTS WARRANTY. I interpret this as a two-part warranty, one that covers the individual parts in the SULEV parts list, and one that covers a failed emissions test.
What are the signs that the sensors are failing?
An Engine That Sounds Rough If your vehicle has a bad oxygen sensor, it could run irregularly or sound rough when it idles. A faulty oxygen sensor can impact your engine’s timing, combustion intervals, and other essential functions. You could also notice stalling or slow acceleration.
What happens when a ECT sensor goes bad?
A faulty ECT sensor can send a false signal to the onboard computer, resulting in an incorrect air-fuel mixture. For example, a faulty sensor can send a signal indicating the engine is cold when it is not, and more fuel will heat the engine quickly.
Which is better N51 or N52?
Which Engine is Better – The N52 or N51? There’s a lot of noise being generated around these two engines as people are trying to figure out which one is better. Power-wise, there isn’t much difference. Both are tuned to deliver the same power and torque.
What BMWS have the N51 engine?
If your E82 128i, E90 328i, or E92 328i was originally purchased in California, Connecticut, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont, Washington state, and Washington D.C. it will most likely come with the N51 SULEV engine.
What does my BMW warranty cover?
In general, a BMW warranty covers: Bumper-to-bumper protection—BMW bumper-to-bumper warranties last 4 years or 50,000 miles, whichever comes first. Also known as comprehensive or exclusionary coverage, this warranty includes most repairs for mechanical breakdown due to faulty materials or workmanship.