What does BMW secondary air pump do?

What is the purpose of the secondary air pump? The primary purpose of the secondary air pump (SAP) is to reduce harmful emissions. Hydrocarbon (HC) and Carbon monoxide (CO) gasses are the two main gasses which contribute to smog.

Can you drive without secondary air pump?

The system is critical to help cars achieve government emissions standards. So, the law says you need a secondary air injection system. Which begs the question: Does a car need a secondary air injection system to run? Strictly speaking, no, it doesn’t.

Should I delete my smog pump?

The tube into the head would rust through and sound like a bad exhaust leak. As for removing the pump, you won’t pass the visual portion of the inspection if you do remove it. I ripped off my smog stuff a long time ago just because I got bored and don’t have emissions.

Where is the secondary air pump relay located?

Both are located in the engine compartment fuse box under driver side fender next to the battery. Both relays are 50 amp, bank one is located in slot 45 and bank 2 is located in slot 46. If the relay is bad, replace it with the same amperage rating relay as the original.

What is the code for secondary air pump on a BMW?

You’re not alone! The secondary air pump and air pump valve are high-failure parts on BMWs. A typical code for air pump issues is “Secondary Air System Flow Too Low” (an F5 or F6 code on some BMWs).

Where is the air pump valve located on a BMW?

Holds the air pump on the right-side strut tower. Genuine BMW part #11727514955. Seals air pump valve to head. Genuine BMW replacement for part #11727505259.

What are some common BMW air pump problems?

The secondary air pump and air pump valve are high-failure parts on BMWs. A typical code for air pump issues is “Secondary Air System Flow Too Low” (an F5 or F6 code on some BMWs). A failed secondary air pump (aux pump) can cause this, as well as the valve on the exhaust manifold that controls the air flow known as the auxiliary air valve.

When to replace the pressure hose on a BMW N62?

Original BMW Pressure Hose for SAI (Secondary Air Injection) on 2002-2005 N62 Engines. Replace aging hoses before they cause greater frustration or a serious failure. OEM replacement hose for BMW part #11727555680