My Smart ForTwo 451 has had a fault for a while. This is the P0012 VVT sensor fault which can cause reduced engine speed and efficiency. A new part from Mercedes Benz was over £150 so before i spent that i decided to buy a cheaper version from eBay China for £25. In this video Dad and i fit the Chinese VVT solenoid to my Smart 451 and hope this fixes the problem.

[00:00] The Problem: Smart 451 Engine Management Light & P0012 Error Code
[01:33] How the VVT Solenoid Works (Variable Valve Timing Explained)
[02:22] Unboxing the £25 Chinese VVT Solenoid vs. £150 Mercedes OEM Part
[04:58] How to Access the Smart Car Engine Bay: Removing the Parcel Shelf & Cover
[06:44] Removing the Old VVT Solenoid from the Smart 451
[07:56] Side-by-Side Comparison: OEM Mercedes Solenoid vs. Aftermarket
[08:31] Fitting the New VVT Solenoid: Troubleshooting a Tight Fit
[10:22] First Start After Solenoid Replacement: Will the EML Stay Off?
[11:33] Test Drive & Performance Check on Lincolnshire Roads
[14:00] Final Leak Check & Reassembling the Engine Cover
[15:04] Will the Cheap Car Part Last? Final Thoughts & Next Steps

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