The Mark Levinson audio system of my GS 350 has no audio. It always turn on with Audio Off and there is nothing I can do to have audio. So I cannot hear any music, however I still can use my Cellphone bluetooth and have a call thru the speakers. So this is very weird. This showed up after replacing the car battery but I had audio right after battery replacement for 1 day. So suddenly it stopped working. I have read many threads on checking the fuses, rebooting the system and disconnecting the battery, I have tested all these suggestions but nothing has worked so far. I just cannot believe that just by replacing a car battery will damage the amplifier. However, I think that if the amp is damaged, why can I still have a phone call go thru the speakers ?? Any suggestions will be appreciated.
Well ,,, it's possible that the problem could be in the radio head unit since that is what sends the audio signals to the amplifier. When I had low volume on a Nakiamichi system in a 2000 LS400 a long time ago, the problem was in the in-dash head unit - fixed by a Florida company.
When a friend had similar low volume in a 1999 LS400, the problem was an old defective phone ECU that was grounding out and muting the audio system. Uninstalling the phone ECU solved that one. Does your RX happen to have an old Lexus phone system?
My suggestion is to avoid using fuel additives or randomly replacing things and to take your RX to a Lexus dealership for an evaluation.
115000 km is quite low. We have a heavier Toyota Sienna Limited van that has the same engine and transmission as your RX. It is at 95,000 miles (about 153,000 km), runs perfectly and averages from 18 to 24 miles per gallon (13.1 to 9.8 L/100km). It has been maintained according to the maintenance schedule. We live in a warmer climate where temperatures average between -10 to +10 Celsius in Winter but colder temperatures should not make much difference unless you are extensively idling the engine to warm it before driving.
The spark plugs should be good to 192,000 km / 120,000 miles. I've always waited to 120,000 mles to change spark plugs per the maintenance schedule and old spark plugs always looked like new.
Using premium 91 octane fuel really isn't necessary. Toyota recommends regular gasoline for the same engine in the Sienna and it runs fine on regular.
Looking for some help. I have a 2017 NX200t. I have read the comments above but still can't figure out on how to get the digital speed to display? If there is a way, where can I find it in the menu? Thanks