Thanks, i have done the below and it works fine now: not sure if the below is what you mean by bed em in or not:. It could be also because I drove it then parked then drove again. Not sure INSPECT BRAKE BOOSTER (a) Check the air tightness. (1) Start the engine and stop it after 1 or 2 minutes. Depress the brake pedal several times slowly. HINT: • If the pedal can be depressed to the floor on the 1st time, but cannot be depressed as far on the 2nd or 3rd times, the booster is airtight. If not, inspect the vacuum check valve. • If the vacuum check valve is normal, replace the brake booster assembly. (2) Depress the brake pedal while the engine is running, and stop the engine with the pedal depressed. HINT: • If there is no change in the pedal reserve distance after holding the pedal for 30 seconds, the booster is airtight. If not, inspect the vacuum check valve. • If the vacuum check valve is normal, replace the brake booster assembly. I will continue testing fo a few days and if no issues, I will try to post a procedure to share. Do you ZRE 2008 workshop manual? I' m currently using Yaris workshop manual (the American version). Not quite accurate but better than nothing