0x27C3 DMTL leakage detection

[mendez]

I got the following error today: 0x27C3 DMTL leakage detection

Any help? Do you think will be an easy fix or I should visit the BMW Service Center to get the +1K quote?

I have the EasyCare Warranty with the $500 deductible.....What you guys think?

Thank You,
Jose

[jpirelli]

Replace DMTL pump

[mendez]

Is this the correct Part No? 16 13 7 193 479 ?

Here is the Code Description

0x27C3 DMTL leakage detection
P0456 tank ventilation system - detects very small leak
Error frequency: 1 Logistic counter: 40
Mileage km 108512
0x27C3 DMTL leakage detection
P0456 tank ventilation system - detects very small leak
Error frequency: 1 Logistic counter: 40
Mileage km 108512
DMTL reference current 26_52 mA
DMTL mA minimum current 20_59
DMTL filtered pump current 25_71 mA
Tankfuellstand 21_00 L
fine leak
Test conditions fulfilled
Error uorhanden currently and already stored
Error would uerursachen the illumination of a warning light
Error code: 27 C3 E2 04 56 01 28 34 FC 20 FD 23 85 99 00 2C 2A

[mendez]

Thanks for your answer....Is this an easy change?

Originally Posted by jpirelli

Replace DMTL pump

[mdosu]

here's some info on non-M3 E9X cars, looks like a PITA to do, it's located on/near the fuel tank

http://www.bimmerfest.com/forums/showthread.php?t=11373

[mendez]

I guess I'm going to be the first one to do this for an M3 then.....

[mdosu]

Originally Posted by mendez

I guess I'm going to be the first one to do this for an M3 then.....

should be the same process, but not sure whether you need to reset any computers in the process after the swap.

[mendez]

I found this video. It looks like a 20min Job.....

[bmrman1]

It can also just be a gas cap left loose at one point. Before you jump into parts replacement I'd secure gas cap and clear the fault and see if it comes back. Before you condemn the dmtl you have to make sure there is no leak in the evap system, this is done by using a smoke machine.

[mendez]

bmrman1,

I already did the gas cap and clear the code...I even replaced and still came up...How can I do the "no leak in evap system", where i need to put the smoke machine?

[bmrman1]

A smoke test can be done from the front at the engine compartment left hand side. Not everyone has access to a smoke tester so you could just replace your dmtl or diagnose if there really is a leak.

[mendez]

It was not the DMLT Pump, I have to do the Smoke Test then....Anyone did this at the dealer?

[victor1416]

So I have 3 codes P2401 P1429 P2419 I replaced my gas cap, canister and also DMTL. I also checked for wires and they're all good. I still have the 3 codes after running the car with my erased check engine. At this point In thinking of doing a smoke test but was wondering if anyone had any ideas? BMW E90 330i 06

[Siajoon]

Had this pump replaced recently, had the codes cleared once and drove it and the code came back so we went ahead and replaced the pump. The entire job takes less than 30 minutes.. it's located right behind the drivers rear tire, couple screws to get the heat shield to move out of the way, about 3-4 hoses (don't remember) and a few screwed to losen the entire canister to replace the little pump.

Pretty straight forward...