850 TDI MAF/vacuum lines

artiedtke · Jan 4th, 2012, 14:33

On the way to my mates house last night my TDI decided to go into limp mode (no dash lights or anything though).

Ive had this happen before and I am sure that it is MAF related as the previous owner said that he had to replace the MAF.

The replacement has obviously come from a breakers as it has "850 TDI" written on it with tippex !

So last night the usual, disconnect the maf, reconnect and make sure all connectors where tight resolved the issue.

However, I have now began wondering, is it the MAF that is the issue, or stuff in the surrounding area. There are a LOT of vaccuum hoses in that area that are cracked and dont look too well, some lead down towards the turbocharger, others are connected to what looks like a 1 way valve on top of the MAF housing.

Does anybody have a diagram for the TDI (D5252T) of the vacuum hoses ? Could a vacuum leak cause the limp mode ???

Also If i am to replace the MAF sensor, is it false economy to get a second hand breakers unit, as I am not planning on getting rid of the car anytime soon (hopefully) so I guess i would be quite willing to spend the £200 on a new unit.

FYI, this unit is the old type 'MECHANICAL' type, reffered to as a VAF (vane air flow) meter.

outnumbered · Jan 4th, 2012, 15:26

is this of any help.
mike

artiedtke · Jan 4th, 2012, 15:32

very nice thanks.

Scorps · Mar 2nd, 2016, 11:33

Quote:

Originally Posted by outnumbered

is this of any help.
mike

Could you, please, upload it somewhere else, www.imgur.com for example? I'm unable to open the file, it only give me a one-pixel image with nothing :/

Jan 4th, 2012, 14:33	#1
artiedtke Just one more thing... Last Online: Jul 10th, 2020 14:44 Join Date: Dec 2008 Location: North Wales	850 TDI MAF/vacuum lines On the way to my mates house last night my TDI decided to go into limp mode (no dash lights or anything though). Ive had this happen before and I am sure that it is MAF related as the previous owner said that he had to replace the MAF. The replacement has obviously come from a breakers as it has "850 TDI" written on it with tippex ! So last night the usual, disconnect the maf, reconnect and make sure all connectors where tight resolved the issue. However, I have now began wondering, is it the MAF that is the issue, or stuff in the surrounding area. There are a LOT of vaccuum hoses in that area that are cracked and dont look too well, some lead down towards the turbocharger, others are connected to what looks like a 1 way valve on top of the MAF housing. Does anybody have a diagram for the TDI (D5252T) of the vacuum hoses ? Could a vacuum leak cause the limp mode ??? Also If i am to replace the MAF sensor, is it false economy to get a second hand breakers unit, as I am not planning on getting rid of the car anytime soon (hopefully) so I guess i would be quite willing to spend the £200 on a new unit. FYI, this unit is the old type 'MECHANICAL' type, reffered to as a VAF (vane air flow) meter. __________________ '98 V40 2.0T B4204T - died... '96 855 2.5 TDI D5252T - 255,000 miles "Diesel without turbo is like a woman without boobs... sure you can drive it, but there's always something missing."

Jan 4th, 2012, 15:32	#3
artiedtke Just one more thing... Last Online: Jul 10th, 2020 14:44 Join Date: Dec 2008 Location: North Wales	very nice thanks. __________________ '98 V40 2.0T B4204T - died... '96 855 2.5 TDI D5252T - 255,000 miles "Diesel without turbo is like a woman without boobs... sure you can drive it, but there's always something missing."

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