I had replaced the whole fuel pump. Is the relay a different component altogether? Thanks for the suggestion.Mel279 said:Try to replace the fuel pump relay whether it is still good or not, a cheap fix, who knows it coulds solve your problem.
badass_ck said:I had replaced the whole fuel pump. Is the relay a different component altogether? Thanks for the suggestion.
Its located in the glove box compartment. Replaced it if its still good or not.
jarance said:borrow from bmwgm5. Location of fuel relay
Hi Mel 279, Jarance and IanDaddy,IanDaddy said:I suggest you try replacing the DME Main Relay (under the bonnet, passenger side). This relay controls power supply to the fuel pump relay amongst others if IIRC. I have strange intermittent starting problem and resolved by changing relay. Worth a try.
I have sent it for checking. They thought there was a leaking somewhere. After the pressure test, they concluded that the nut/bolt which you unscrew to let off the steam when you want to open the water tank cover, was leaking. The nut/bolt was just replaced yesterday.jarance said:You are losing water after 100 to 200 Km drive. Please investigate this problem first.
Solve this problem and it may solve your present problem.
Car is driven daily. I will keep that in mind, thanks.fire said:Hv you check you fuel pressure regulator? since you have to crank it many times. 1st time crank is the worst, no response at all but after 5 crank, the chances it is getting better & better after each crank. so i guess(maybe) after you leave your car for few hours (longer) the pressure drop significantly, and you need to crank lots of time to restore back the pressure. if you seldom drive your car, try fill up with Ron 97 instead of 95 as this will improve starting/cranking the car but if the car are driven daily, then this is non issue.
What causing mech suggested to change electronic board ? Which electronic board is mentioned ?badass_ck said:I have sent it for checking. They thought there was a leaking somewhere. After the pressure test, they concluded that the nut/bolt which you unscrew to let off the steam when you want to open the water tank cover, was leaking. The nut/bolt was just replaced yesterday.
The mechanic suggested me to change the 'electronic board' (not sure what it is called but i translated directly from cantonese "din pan"). Will it be a cause?
Car is driven daily. I will keep that in mind, thanks.
Hi,tweiboon said:What causing mech suggested to change electronic board ? Which electronic board is mentioned ?
hahaha the cold start problem is almost gone but i encounter a new issue.jarance said:Use Ron 97 - Problem solved 95%
Use Shell V-Power - Problem solved???
Amazingly true. I am quite astonished, really.splee said:It's true. Sometimes changing to a better fuel can help solved engine problem. My old rabbit CEL problem was solved when I switched to vPower Racing.
I suspect you might have issue with your spark plug? when is your last replacement of spark plug?badass_ck said:Hi,
I am not sure but that was the suggestion given.
Just a little update:
I started using RON 97 2 weeks ago and guess what? the problem has reduced almost to none. I am rather surprised as one of the sifus commented and suggested to change to RON 97 and voila! my problem is 95% solved! haha
coolant signal comes on - done pressure test 3 time-no leakage-need engine overhaul..not quite a logic.badass_ck said:hahaha the cold start problem is almost gone but i encounter a new issue.
New issue: coolant signal comes on. When car is stopped with engine running, i need to press to accelerate to reduce the temperature to normal. Or else it goes up. Done pressure test 3 times at separate times including today. No leakage is found. Boss of the workshop said i probably have leakage in the engine/gasket which will become serious and overhaul is needed.
Your opinion on this, sifu?
Amazingly true. I am quite astonished, really.