BMW M3 SMG

[ERS M3]

HI GUYS IVE HAD MY BMW M3 4 ABOUT 1 YEAR HOW, AROUND JUNE LAST YEAR THE SMG LIGHT CAME ON, AND THEN 5MINS LATER THE ENGINE LIGHT CAME ON,THEN THE DISPLAY IN THE INSTRUMENT CLUSTER STARTED TO FLASH. AFTER THE CAR WOULD'NT DRIVE.GOT IT DOWN TO BMW SPECIALISTS AFTER SOME LONG HOURS!!! IT CAME UP ON THE AUTOLOGIC DIAGNOSTICS AS [056] 38 ON PERIOD,HYDRAULIC UNIT.AND [177] B1 MIL LIGHTS UP DUE TO PROMPT FROM SMG.I HAD THE SMG PUMP RELAY REPLACED,AND THE BONNTED SWITCH REPLACED.WAS OK 4 2 WEEKS,BUT WHEN I DRIVE IT 4 A LONG TIME IT DONE IT AGAIN.IT ONLY HAPPENS WHEN THE CAR GETS HOT.BEEN OK 4 9 MOTHS HOW,SATERDAY JUST GONE SMG LIGHT CAME BACK ON THEN THE ENGINE LIGHT.GOT BACK TO THE BMW SPECIALISTS,CAME UP AS SAME THINGS AS LAST TIME.DONT NO WOT TO DO? SHOULD I REPLACE THE HYDRAULIC UNIT OR ACCUMLATOR CHARING PRESSURE UNIT. PLEASE CAN SOMEONE HELP ME!

[ecain63]

Try typing in lower case as its really annoying reading in capitals.

[ERS M3]

ecain63 said:

Try typing in lower case as its really annoying reading in capitals.

I WILL WHEN I GET HOME TO MY LAPTOP,THIS IS MY BRO'S AND NOTHING TURNS OF LOL

[ecain63]

ERS M3 said:

ecain63 said:

Try typing in lower case as its really annoying reading in capitals.

I WILL WHEN I GET HOME TO MY LAPTOP,THIS IS MY BRO'S AND NOTHING TURNS OF LOL

No worries.

[Cemesis]

Sounds like the SMG pump is on its way out. These are coming upto 10 years old now so I'm expecting more to appear due to wear rather than premature failure. I imagine the pump is having trouble maintaining pressure and as such it triggers the light sometimes. You might get away with leaving it but if it were me I'd replace it as if it lets go entireley you'll be stranded and then forced to buy another.

[ERS M3]

Cemesis said:

Sounds like the SMG pump is on its way out. These are coming upto 10 years old now so I'm expecting more to appear due to wear rather than premature failure. I imagine the pump is having trouble maintaining pressure and as such it triggers the light sometimes. You might get away with leaving it but if it were me I'd replace it as if it lets go entireley you'll be stranded and then forced to buy another.

thanks for your quote it sounds like i will have to buy 1,some one said its £800+vat at main dealer. or do u no where i can get cheaper 1?

[RJDM3]

I would be looking at the temp sensor in the pump before looking at replacing the pump. If this only happens when hot it could be the sensor has failed rather than the pump unit

[ERS M3]

RJDM3 said:

I would be looking at the temp sensor in the pump before looking at replacing the pump. If this only happens when hot it could be the sensor has failed rather than the pump unit

hi there mate,thanks 4 your quote.how much will the sensor cost? i rang bmw today to see how much the hydraulic pump is £1150+vat £1380

[RJDM3]

I dont know the cost off the top of my head, give bmw a call. They are not expensive compared to the pump unit. Also you may lose some pump fluid if you do decide to try the temp sensor and so budget for a litre of that too

[ERS M3]

RJDM3 said:

I dont know the cost off the top of my head, give bmw a call. They are not expensive compared to the pump unit. Also you may lose some pump fluid if you do decide to try the temp sensor and so budget for a litre of that too

cheers bruv, i will ring them in the morning and see.i will let u no thanks

[Mahogany]

ERS M3 said:

hi there mate,thanks 4 your quote.how much will the sensor cost? i rang bmw today to see how much the hydraulic pump is £1150+vat £1380

I always thought a new pump was more than this. Which dealer did you get the quote from?

[ERS M3]

Mahogany said:

I always thought a new pump was more than this. Which dealer did you get the quote from?

i think its the one in blackheath south east london here's the number 02082958500 that was trade price.retail price was £150 more i think!!!