Stephen Max

Hi all,

I have tried searching but am having no luck in getting a definitive answer.

I am getting a CEL related to the cam position sensor A, bank 2. Am I correct in assuming sensor A is the sensor for the intake cam, and bank 2 is the cylinders on the passenger side of the engine?

This is for a 545i, by the way.

Thanks much.

dawid_w

I would say: intake cam sensor on the driver side.
Bank 1 is for cylinders 1-4 (passenger side)
Bank 2 is for cylinders 5-8 (driver side)


GL

Stephen Max

Thanks, I was a little uncertain about which bank, glad I asked before attacking the wrong side of the engine.

ottawahull

Is this an expensive procedure?

pcy

On N52 ('06 530), Camshaft position sensors are mounted on the front of the engine; relatively easy to replace.
I don't know where they are mounted on 545i.

Stephen Max

The sensor is about $80 from Pelican, and it is readily accessible, being on top of the valve cover. It is towards the back of the engine, so you may have to remove the plastic cowling pieces on the firewall to get at it, but that is not difficult. I can't imagine an honest mechanic charging more than an hour to do the job.

Stephen Max

Just so there is no misunderstanding, I was speaking about the N62 engine, here.

pcy

designation of Bank1, Bank2, exhaust, intake... same for N52 or N62.
The only difference would be the location - where those sensors are mounted on the engine.

Cacontrino420

I have a 550i 2008 and I’m having camshaft position sensor bank 2 sensor a and b. I’m also getting a throttle potientiometor code for range and performance could that be causing the camshalf problems for bank 2 I replaced 4 on back of motor up top and one under motor by oil pan any info will help thanks