Hi Nugget friends,

I do a big servis of D4S heater after more than decade and have a following questions .....

1. Motor/blower original part = 25 2113 20 02 00 - do you know any source or may be replaced with 25 2113 99 20 00?
2. Control unit original part = 22 5101 00 31 02 - any idea where to buy or how to replace?
3. Burner original part 25 2113 10 01 01 - may be replaced with 25 2113 10 01 00?





Great thanks in advance.

Kind greetings

Radim

Hi Thomas,

thank you very much for reply.

It seems that new part numbers are compatible .

I´m going to replace almost whole heater including the housing.

The most time consuming will be metal holder renovation, but looks terrible, rust took control over, therefore must sandblast it completly.

Don´t you know where to get FLEXADUR hoses 90 and 75 mm cutted by one meter please?

I know only 4 m source, but it is too much for one repair and relatively pricely.

I have already the heater disassembled, there is one more D4 in my box. Original plan was to combine parts, but I decided to fully restore both.

THX .... Radim

www.pneumatikshop-online.de/silikon-heis...c-alle-groessen.html

Found it !!!!

norge schrieb:

Hi Radim,

nice to hear you

1. Motor/blower original part => 252113200200

Finally I decided for an original part, because have ordered all inner parts except for control unit from one vendor.
Actual number of D4S blower is 25214499200.

I din´t get any response from Berlin regarding control unit, but try to test my on diagnostic.

Hoses are on the way ....

In the meantime I have completed sandblasting of the holder and two layers of rost converter aplication (Wurth 0893110).

Not bad results, expect to have holder as new next week .....

Unfortunately have discovered wire corrosion on intake air hose, what caused settled dirt on the blower.
I´m very happy that all new hoses arrived on time and I can exchange whole ducting.

Passenger seat had to be dismantled ....

..... reassembling the heater ..... I like this work .... next step = ducting ....

Mission acomplished ..... ducting took some time, but nothing to get over ..... job done ..... I have used stainless steel bolts M6x20 to fit holder.
75 mm ducting from "T" to the rear hot air output will be done in summer, because I must very urgently go to the Alps within few hour and enjoy new snow .

One seat "decket" got unfortunately broken probably because wad frozen, therefore I´m searching for new one.
If would you know where to ask for, be so kind and let me know please.

.....

Broken Roboplastic seat cover .....