Each and every model of other car maker will also have 1 or 2 unit of lemon. I would like to make a guess on your friend's SV

1) Change fuel pump due to hard to start car after engine got hot. Often stranded at car park for 1/2 hour before the car can start. SC suggest to change fuel pump.
2) After change of fuel pump, still having trouble to start car. Everytime after lunch go back carpark wanna start car, it just wont start! Again, SC in view of already changed fuel pump, might as well change starter.
3) After all effort, there's nothing much can be done except change the air filter box. I don't see the relation of whether the car can start or not, may be during service SC technician accidentally break it, had to replace 1.

Guess what? After change of fuel pump, starter and the bloody air box, your friend still having trouble to start the engine after lunch hour/long distance drive Ask your friend whether he/she got come lurk around LYN GaGa thread. If not, better start now. We're the bunch who bought the same lemon car with the same lemon juice at the same amount of lemon trouble. The hard to crank start trouble is already discussed and explained many times due to injector overflow which happened quite often to hi-power output(in comparison with cubic capacity displacement) engines, also can caused by TDC Sensor(Top Dead Centre) which the engine management need to find the firing sequence by reading the crankshaft position that indicate when the #1 piston is reaching the ceiling of the combustion chamber, for initiating the firing sequence of your separberak. Is it bad? Yes it is. Is it the engine design defect? No not really. Most of the time is caused by local weather/bad fuel quality/bad habits of driver(if you remember your grandfather always like to pump the accelerator before switch off engine, where they explain this will charge up the battery abit to get ready for the next start up, which totally not required by new generation engines because the alternator charging is limited by electronic cut out).

So, all these lemon problems are all from the same lemon car with some basic lemon expertise, we can make lemonade a joyful drink. WTFisLYN please suggest your friend to join our TT and come lurk here more often. If any problem he/she face, do come over and use the search function. We do care about the car and we know the car characteristic like the back of our hand. Please buy with confident and enjoy the car.