Get your Bosch warm up regulator repiared with 6 months warranty! Our workshop offers a reliable and quick service with 30 years of experience. We have successfully repaired hundreds of warm up regulators so far. 

Your warm up regulator will be checked, cleaned, tested and adjusted in every temperature ranges. You will get a fully operational warm up regulator back. We will repair your item within 24 hrs. 

How to tell if a WUR is broken? I don't find my number on the list, what can I do? Click here! 

Before purchasing please make sure your WUR part number is on the list below. 

0 438 140 004 
0 438 140 005  
0 438 140 011 
0 438 140 013 
0 438 140 014
0 438 140 020 
0 438 140 026
0 438 140 032
0 438 140 048
0 438 140 049
0 438 140 051
0 438 140 052
0 438 140 055
0 438 140 058
0 438 140 064
0 438 140 065
0 438 140 071
0 438 140 072
0 438 140 073
0 438 140 074
0 438 140 084
0 438 140 088
0 438 140 090
0 438 140 093
0 438 140 096
0 438 140 097
0 438 140 099
0 438 140 100
0 438 140 111
0 438 140 114
0 438 140 118
0 438 140 119
0 438 140 128
0 438 140 129
0 438 140 132
0 438 140 136
0 438 140 146
0 438 140 157

Mending your warm up regulator costs 179 Euro, you can pay that amount by money transfer or with PayPal. We will take over the postage if you live inside EU. 



Please send your item and your contact addresses to: 
BMS Motordiagnosztika 
2030 Erd Rozsa u. 5. 
HUNGARY 

If you have any quesions, you can contact us by This email address is being protected from spambots. You need JavaScript enabled to view it.

If you don't find your WUR number on the list, you have a warm up regulator equipped with additional pressure corrections. The diaphragms of this additional cells can not be rapaired, as there is no good quality spare part available. However, the correction cells only alter the control pressure in a small scale, so if you accept that the cells may not be mended, our repair service will help you considerably. 
Like by a new item, warranty void if fuel contamination causes wrong operation after rebuild. 
If you have any quesions or want to send your unit, you can contact us by This email address is being protected from spambots. You need JavaScript enabled to view it.

BmS Motordiagnosztika 

2030 Erd Rozsa u. 5. 

HUNGARY 

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. 

Phone: +36305988006