Intermittent starting

Dec 10, 2021
1
0
Hi I’m new on so excuse if I go on. My son has a 1.6 copa TDI 2012. Problem with starting an had battery tested and was said to be ok so installed new alternator (£246). Problem still persists. Battery voltage is 12.2v and when booster is applied car starts no problem. My son says he has noticed power steering heavy at times until he revs car up. I’ve metered battery and once started 14.1v so I assume alternator is fine - any pointers. Alan
 
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