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      01-14-2022, 06:58 PM   #1
willbeing
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B Camshaft Position - Timing Over-Retarded Codes

Hi All,

I'm fairly new to working on cars, but have had some success with our 2011 X5 50i and am loving it! We're throwing some codes right now and the engine is running at reduced power. These are the codes:

P054D cold start b camshaft position timing over-retarded bank 2
P0025 b camshaft position - timing over-retarded bank 2
P05CF cold start b camshaft position timing performance bank 2

Any idea what these could mean or how to diagnose? I'm seeing online that it could be the camshaft sensor, crankshaft sensor, or solenoid valve. Are any of these more likely? Could it be anything else? Are these difficult repairs?

Thanks for your help,
Will
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      01-15-2022, 05:36 AM   #2
My135i
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Quote:
Originally Posted by willbeing View Post
Hi All,

I'm fairly new to working on cars, but have had some success with our 2011 X5 50i and am loving it! We're throwing some codes right now and the engine is running at reduced power. These are the codes:

P054D cold start b camshaft position timing over-retarded bank 2
P0025 b camshaft position - timing over-retarded bank 2
P05CF cold start b camshaft position timing performance bank 2

Any idea what these could mean or how to diagnose? I'm seeing online that it could be the camshaft sensor, crankshaft sensor, or solenoid valve. Are any of these more likely? Could it be anything else? Are these difficult repairs?

Thanks for your help,
Will
Never had issues with cps but it's fairly easy to replace at least the exhaust on each side! The intake camshaft on passenger side, you might have to lift up the harness little bit to gain access! I think driver side is the same! In fact, I changed mine just a preventative maintenance when i did my injectors
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      01-18-2022, 06:47 PM   #3
willbeing
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Thanks for the reply! These are the converted codes:

2A74 Variable Camshaft Timing Control Exhaust #2 Cold Start
2A7B Vanos Exhaust 2 Cold Start
2A7E Exhaust Vanos 2 Mechanism

So it looks like a Vanos issue. Just not sure if it’s the Solenoids or the Mechanism. I’m hoping the former, it’s a much easier job. Will keep you posted.
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      01-20-2022, 11:50 AM   #4
slovakE70
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Quote:
Originally Posted by willbeing View Post
Thanks for the reply! These are the converted codes:

2A74 Variable Camshaft Timing Control Exhaust #2 Cold Start
2A7B Vanos Exhaust 2 Cold Start
2A7E Exhaust Vanos 2 Mechanism

So it looks like a Vanos issue. Just not sure if it’s the Solenoids or the Mechanism. I’m hoping the former, it’s a much easier job. Will keep you posted.
Had the same thing. Swap the solenoids on that bank to see if codes move to Intake. Best to clean them when you have them out.
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