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[[File: DMU_20141207.jpg|thumb|200px300px|right| The DMU operating as a four car unit.]]==BR Class 108 General Information==The BR Class 108 diesel multiple units (DMU) were built by BR at Derby between 1958 and 1961. They are mainly of aluminium construction, with steel cab ends. Typically they were operated in 2, 3, or 4 car sets. A total of 333 cars were built, comprising<ref>[[The DMU Group https://en.wikipedia.org/wiki/British_Rail_Class_108 BR Class 108 on Wikipedia]</ref>:{| class="wikitable"! Car type!! Description !! Number built !! Seating capacity as built !! SVR Examples|-| Driving Motor Brake Second (DMBS) || Powered driving car || 152 || 52 second class || M50933, M51941, M51935 (scrapped)|-| Driving Motor Composite with lavatory (DMCL) || Powered driving car || 58 || 12 first 53 second || M52064|-| Driving Trailer Composite with lavatory (West MidlandsDTCL) | DMU group]] operates a three | Unpowered driving car and a two || 106 || 12 first 53 second || E56208|-| Trailer Second with lavatory (TSL) || Unpowered centre car DMU, which are usually combined to form a five || 11 || 68 second class || NE59250|-| Trailer Brake Second with lavatory (TBSL) || Unpowered centre car unit.|| 6 || 50 second class || |-|}

The first 2 cars, '''Driving Motor Brake Second M51941''' and '''Driving Motor Composite M52064''' arrived on Withdrawal of the SVR class from service began in October 1990, initially on a two year loan. '''Unpowered centre car M59250''' arrived in June 1992 and entered service in November Unlike some other early models of that year to form a 3-car unitDMU, the class 108 did not contain asbestos, making them suitable for preservation on heritage railways.

Powered ==DMU Group vehicles==The [[The DMU Group (West Midlands) | DMU group]] operates five cars. These can be used as separate three car and two car units, but are usually combined to form a five car M51935 was purchased unit for purposes such as the summer Scenic Cruises. From time to time maintenance requirements may result in June 1992 operation as a souce of spares, but by 1993 had been restored and entered servicefour car unit.

In autumn 1996 The first 2 cars, DMBS M51941 and DMCL M52064 arrived on the Group acquired SVR from Doncaster via Tyseley on 30 March 1990, initially on a fifth two year loan. The 2-carset was formally commissioned on 13 October 1991. After a return trip from Kidderminster to Bridgnorth, unpowered '''Driving Trailer Composite 56208''', giving an additional 65 seats capacitythe MD of Regional Railways presented the key to officers of the DMU Group.<ref>SVR News 102</ref>

M51395 was extensively damaged by fire Unpowered centre car TSL M59250 arrived on 7 June 1992 and entered service in May 2008 in what was believed November of that year to be an arson attackform a 3-car unit. The Group acquired '''Powered centre car M50933/53933includes the Group’s main bar facility, called 'The Travelling Tavern'' as a replacement.

A fourth car, DMBS M51935, was purchased in June 1992 as a source of spares, but by 1993 had been restored and entered service. In autumn 1996 the Group acquired a fifth car, unpowered DTCL 56208 which arrived on 21 December, giving an additional 65 seats capacity. M51935 was extensively damaged by fire in May 2008 in what was believed to be an arson attack. Subsequently it left the SVR to be broken for spares elsewhere. The Group acquired DMBS M50933 as a replacement. In 2010 alterations were made for the conveyance of wheelchair passengers. ==Workings in preservation==*In 2004, all five cars took part in the [[Railcar50]] event, participating in a 12 car special which was the longest DMU formation ever to operate in preservation<ref>http://preserved.railcar.co.uk/</ref>.*For much of 2018 and 2019 the DMU was unavailable for service for attention to various mechanical and electrical issues. It being the only diesel powered train capable of providing a heated train on the SVR, a mixture of steam and [[Diesel Locomotives hired by the SVR|hired-in diesel]] locomotives deputised for the winter services and the summer Scenic Cruises.*By June 2019 all five vehicles were out of service due to considerable repairs needed on some of the bogies and brakegear, and the SVR mandating the units could not run. The repairs required the units to go to either the [[Carriage Repair Works|carriage repair works]] or [[Diesel Depot|diesel depot]] as the group lacked the resources and manpower to lift the vehicles.<ref>[https://dmuwmbsb.wordpress.com/2019/06/05/2019-maintenance-statement/ DMU Blue Square blog, 5 June 2019] (Retrieved 9 November 2020)</ref><ref>SVR News207</ref> In the event repairs fell to the carriage repair team, where it was held up by other work and [[2020 coronavirus disease (COVID-19) pandemic|COVID-19 restrictions]]. A two car unit of 50933 and 52064 became available for traffic in November 2020<ref>[https://www.facebook.com/groups/895472313877202 SVR Diesels Official Facebook, 8 November 2020] (Retrieved 9 November 2020)</ref>.  ==Gallery==<gallery mode=packed heights=150px style="text-align:left">File:51941_20150307.jpg | DMBS M51941File: 52064_20150614.jpg | DMCL M52064File: 59250_20150718.jpg | TSL NE59250File: 56208_20150718.jpg | DTCL E56208File:50933_20150614.jpg | DMBS M50933</gallery><gallery mode=packed heights=150px style="text-align:left">File:Leyland 680 1.JPG | DMU engine on display at the Diesel DepotFile:Leyland 680 2.JPG | DMU engine on display at the Diesel Depot</gallery>  == See Also also ==