What's wrong with my 2009 Volvo C30? It lacks power when cold, but it's fine when warm. Any ideas?

Why does my 2009 Volvo C30 lack power when it's cold, but has power once it's warmed up?

My Volvo S40's battery seems fine. Why does the electrical system show a fault, and it starts smoking as soon as I start it? We've checked but can't find what's wrong.

My 2012 C30 has been driven for 78,000 kilometers. Now, when I drive, the 2nd and 3rd gears feel jerky and lack power. What could be the reason?

What's going on with the Volvo C30 when you can't shift gears? It's stuck in the P position and won't move.

How to set the Volvo C30 side mirrors to automatically fold when locking the car?

The acceleration noise of my Honda City is loud and lacks power. Please help!

What could be causing the Luxgen M7 engine to make a knocking noise when cold, but not when warmed up?

My Peugeot 301 manual from 2016 has trouble starting when it's cold, but it starts easily when it's warm. What's going on?

My Hongqi H7 is lacking power when refueling, and it shakes and sputters. The dashboard indicates an exhaust system issue.

I've got a 2009 Peugeot 307, and the air conditioning isn't cooling very well. I had it recharged with refrigerant, but it still doesn't get cold enough, especially on hot days. Any idea what might be wrong?