I'm having issues with my brakes. When I step on the brake pedal it acts as if the ground is wet and slippery. But the ground is very dry, kind of scary because the pedal goes down some more than it should. Happens only when stopping at 40 and up mph. I changed the brake fluid and it helped out a lot. But still doing it a little bit. Maybe flush the fluid again?

The other is the air pump. It kicks in once the temperature reaches 80 degrees Fahrenheit. Like clock work this happens. It turns on for about 2-3 seconds and off downwind stays off till the next morning. Thanks for any suggestions.

 

The brake feel on the c43 is certainly not of sports car level. Is does feel softish. However a full brake fluid change should be programmed every 2 years and even more often if you use the brakes hard or if the vehicle lives in a humid climate.

A brake bleed takes a certain amount of time and fluid too. I use around 1.5lt of fluid for a fluid change and bleed and I recommend the use of a pressure brake bleeder, Motive Products for example: https://www.motiveproducts.com/
In my case, this method has given me a 100% success each and every time. Also with the pressure bleeder you can do away with the help of a "pedal pusher"
I would also check that your brake flex lines are not old and swelling under pressure. Best solution is to replace with SS flex lines. Some on here have gone to an upgraded master brake piston with good results too.

In all cases you don't want to fool around with brakes. Your life and that of others depend on an excellent working brake system at all time

 

Thanks for the info, going to buy the brake lines and that bleeder at Amazon.

 

Geo.,

you may have a weak M/C or bad booster..!!

ZAYED,,

 

It's not hard to replace right? Is the brand centric good?
It's $100.00 at Amazon. If no what brand you suggest?

 

Don't know about Centric, prefer "Lucas or ATE", as they're an OEM,,

is the one you have with pressure solenoid (at the bottom of M/C..?

It's not that hard to replace it, just remove the metal/solid pipes, then replace it, with good bleed process...

ZAYED,,

 

Found the ATE for $174.00

I have plenty of brake fluid left so going to flush and put in 1liter. I bought 2 liters but only used half of the liter which is probably why I'm still having the issue. Because before the flush I even had the abs light come in a few times. Now that is not happening anymore. And the system is 80% much better with just half a liter flush. So I'm hoping it will be 100% better after a whole liter flush.

 

I have good info now for the brake problem.
How about my 2nd issue where the air pump kicks on and than off when reaching 80 degrees?

 

Air pump inject air for better Exhaust Emission,

this will provide oxygen>>oxidize un-burned and partially burned fuel in the Exhaust system,

sometimes it works 2>5 seconds, and sometimes 10>25 seconds,,

that depends to the O2 sensor air capacity though to the ECU..

ZAYED,,

 

I thought the air pump only turned on in the morning on cold starts.
Than stays off till the next day. Mine does turn on in the morning than like you said after some seconds turns off. But mine also turns on at 80 degrees which the engine is warmed up. When it turns on at that degrees it makes my cars idle drop like it almost turns off the engine than quickly idles normal. I don't think that's normal because my other c43 never did that at all.

That air pump has a hard kick when it turns on. But you don't feel it because the idle is high on cold starts. But when the engine is already warm the idle is low/normal so when the air pump kicks on it puts a heavy load on the engine which makes it like it's going to turn off than 2 seconds later shuts off and idle is back to normal.

I'm going to have to google as to when the air pump turns on...

 

Yeah, seems your Right..!

air pump should not operate when Engine warms-up,,

did you try to disconnect it..??

ZAYED,,

 

We don't have the worry of an air pump on European engines
One thing less to go wrong!

 

I had unplug it and than plug it back in didn't fix it. Is that what you meant?

 

I have ruined the pump disconnected for two days I believe and I think I got the engine light. I'm going to do it again today to see what happens.