Did the Tesla service center scam me? Got a low coolant warning ‘17 Mx with only 24k miles. Sc replaced valves 3 and 4 claiming they were both leaking. Charged ~$240 for 4 way valve ~$185 3 way valve and $171 to flush and refill coolant. They also attempted to charge an extra $95 diagnostic fee. Total paid $654 after complaining to get diagnostic fee waived. Other threads I’ve seen claim the coolant flush was included. Ughh who can we trust these days