Key takeaways
- The Integral is an articulated railcar: several short body sections that rest on shared bogies and form a continuous interior.
- Fastest way to identify it: an unusual shape plus articulated construction plus diesel traction - this combination is an exception in German regional rail.
- The designation S5D95 is a manufacturer's type designation and doesn't follow the three-digit DB class system.
- The vehicle became known in the Bavarian Oberland, where it long shaped the look of the regional services.
- Deployment and fleet size are subject to change: check the current status before a planned trip rather than relying on older overviews.
Contents
- 1.What is the Integral S5D95?
- 2.Identification: the articulated design is the key feature
- 3.Context in rail operations: special build instead of mass production
- 4.Spotting and photography: allow for the length
- 5.Why small batches are difficult in operation
- 6.Common mix-ups and how to rule them out
- 7.Verdict
Fact file
| Vehicle type | Multi-part diesel articulated railcar for regional services |
|---|---|
| Manufacturer | Integral Verkehrstechnik, Jenbach (Tyrol) |
| Years built | second half of the 1990s |
| Car body | Lightweight aluminium construction |
| Design | Articulated train with short body sections over shared bogies |
| Known service | Bayerische Oberlandbahn - service status changes, please check the current state |
| UIC type code | 95 - diesel railcar |
Identifying features
Is this really the class in front of you?
- Multi-part train made of short body sections with a continuous interior
- Body sections rest on bogies shared between the sections
- Distinctive, strongly rounded front end - markedly different from DB standard vehicles
- Diesel traction: engine noise and exhaust system, no pantograph on the roof
- No classic three-digit DB class number, but a manufacturer's type designation
- Operator livery instead of traffic red - markings and logos are the fastest clue here
Updated: August 2026 - If a diesel railcar consists of several short body sections, only one bogie sits between two sections, and the front doesn’t look anything like a standard vehicle, then you’re looking at the Integral S5D95. This page places the vehicle in context, explains the design behind it and shows you how to reliably tell it apart from the usual regional railcars.
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What is the Integral S5D95?
The Integral S5D95 is a multi-part diesel articulated railcar for regional services, built by Integral Verkehrstechnik in Jenbach in Tyrol in the second half of the 1990s. The car body is a lightweight aluminium construction, and the train consists of short sections that rest on shared bogies. The vehicle became known through its service in the Bavarian Oberland.
Important for classification: S5D95 is a manufacturer’s type designation, not a DB class number. Vehicles that originated outside classic DB procurement often carry such designations - they say something about the design and origin, but nothing about a place in the three-digit class system. The UIC type code 95, by contrast, makes clear what it is: a diesel railcar.
Identification: the articulated design is the key feature
The Integral is one of those vehicles you identify by its body shape rather than its number. These three steps get you there reliably.
Count bogies, not axles
If only a single bogie sits between two body sections, you're looking at an articulated train. On conventional multiple units, each body section rests on two bogies of its own.
Establish the traction type
No pantograph on the roof, but engine noise and an exhaust system: that rules out every electric multiple unit and points to type code 95.
Compare the front and the markings
The shape clearly differs from familiar standard vehicles. The operator logo and vehicle number on the car body provide the confirmation.
If you want to practise this process in general, the guide to identifying classes helps. How the vehicle number is structured and what the first digits reveal about the vehicle type is explained in the article on the UIC number and its check digit.
Memory aid for articulated trains
Count the gangways between the body sections and the bogies underneath them. The same number of bogies as coach ends means a conventional multiple unit; noticeably fewer means an articulated train. That works even from some distance away.
Context in rail operations: special build instead of mass production
German regional rail is shaped by a small number of mass-produced platforms. Vehicles like the Integral are the exception - and that’s exactly what determines where and how you’ll encounter them. The type became known chiefly through service with the Bayerische Oberlandbahn.
| Feature | Integral S5D95 | Typical mass-produced regional vehicle |
|---|---|---|
| Design | articulated train with shared bogies | conventional multiple unit with its own bogies |
| Spread | small batch, regionally concentrated | nationwide across many networks |
| Designation | manufacturer’s type, no DB class number | three-digit class number |
| Spares and workshops | specialised, complex | standardised, widely available |
| Chance of a sighting | low and strongly location-dependent | high, plannable via the timetable |
For comparisons in the field, it’s worth looking at the mass-produced designs that do the same job: the widespread Class 628/629, the more modern Class 648 (Coradia LINT 41) and the Siemens Desiro Classic of Class 642. Anyone who can reliably tell these three apart will spot a special build for what it is straight away.
Don't miss special builds
Community sightings show you where unusual vehicles are currently out and about.
Spotting and photography: allow for the length
An articulated train is long and low - two properties that work against the classic platform photo. These points help.
Distance instead of focal length
To capture the whole train length, you need distance, not a telephoto lens. A vantage point at the end of the platform looking towards the arriving train usually works better than a position halfway along it.
Choose a three-quarter view
About 30 to 45 degrees to the vehicle's axis shows the front and the side at once. Only this way does the articulated design actually become visible in the shot.
Capture details separately
A second shot of the bogie between two body sections and one of the vehicle number turn the main image into solid documentation.
Location and safety
Photograph from the platform or from publicly accessible paths. Track areas, operational railway land and stabling areas are off limits - even when nothing appears to be moving there. Shunting and transfer moves don't announce themselves.
The guide on building a photo archive for spotters shows how to turn individual photos into a usable archive over the years.
Why small batches are difficult in operation
The Integral is technically interesting and operationally demanding - and the two are linked. Understanding why such vehicles often stay in service only for a limited time doesn’t require looking at the technology, but at maintenance.
A mass-produced vehicle running nationwide in three-digit numbers has a spares depot, trained workshop teams, proven maintenance schedules and, if in doubt, a spare vehicle nearby. A small batch has none of that. If a component fails for which there’s no second supplier, the vehicle is stuck - and with it, possibly, part of the timetable. Add unusual design solutions, such as a lightweight aluminium car body, and every repair becomes a special case.
For spotters, that has two practical consequences. First, small batches are disproportionately often in a siding or in the workshop, which lowers your hit rate. Second, they disappear quickly and completely once an operator settles on a mass-produced design - not gradually over years, but often within a single timetable year.
That leads to a simple rule: if you have a vehicle like the Integral in front of you, take the sighting straight away. The assumption that you can catch up next summer goes wrong especially often with small batches.
The same logic, incidentally, explains why German regional rail has visually converged over the years. Where operators once went their own way, a handful of platforms now dominate, appearing everywhere in slightly modified form. That’s operationally sensible and, for observers, a little disappointing - which is exactly why the remaining exceptions are so interesting. An articulated train in lightweight aluminium construction tells you more about a procurement decision than twenty identical-looking mass-produced vehicles.
Common mix-ups and how to rule them out
It points to the Integral if …
- the train consists of several short sections with shared bogies
- the front clearly differs from the usual mass-produced vehicles
- there's no pantograph on the roof
- the markings show a manufacturer's type designation instead of a DB class
Look more closely if …
- you only see the front and can't judge the body design
- the vehicle is stabled and the markings are hidden
- a special livery obscures the usual features
It isn't an Integral if …
- every body section runs on two bogies of its own
- a pantograph sits on the roof
- the marking shows a three-digit class number such as 628, 642 or 648
Verdict
The Integral S5D95 is a vehicle for observers who pay attention to shapes rather than numbers. Its articulated design, lightweight aluminium construction and distinctive front make it unmistakable - but they also make it an exception in a fleet dominated by a handful of mass-produced platforms. Anyone who wants to see it should work from current sightings and take every opportunity that comes up.
In short
Articulated train, diesel, unusual front, manufacturer's type designation instead of a class number: that's the Integral S5D95. Rare, distinctive - and every documented sighting is worth it.
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Summary
- The Integral S5D95 is one of the few German regional vehicles built as an articulated train in lightweight construction.
- For identification, the body shape, traction type and manufacturer's designation on the markings are enough.
- Because the vehicle never ran in large numbers or across a wide area, every sighting is worth documenting.
- Before a dedicated photo trip, it's worth checking current sightings, because service status and locations change.
Frequently asked questions
What is the Integral S5D95?
The Integral S5D95 is a multi-part diesel articulated railcar for regional services, built by Integral Verkehrstechnik in Jenbach in Tyrol. Its defining features are the lightweight aluminium car body and the articulated design made of short sections. The vehicle became known above all through its service in the Bavarian Oberland.
What does the designation S5D95 mean?
It's a manufacturer's type designation, not a DB class number. It therefore doesn't follow any of the familiar German numbering systems. For unambiguous identification of a specific vehicle, the full vehicle number on the car body is what counts.
What is an articulated railcar?
An articulated railcar consists of several short body sections that don't each rest on their own bogies, but instead share bogies positioned between the sections. That saves weight and components and allows a continuous interior with no connecting doors - recognisable by the fact that only one bogie sits between two body sections.
How do I tell the Integral apart from a standard railcar?
By its shape. Standard vehicles in German regional rail look functional and closely resemble one another. The Integral stands out for its unusually rounded front and its articulated design. Add an operator livery without DB markings, and identification is usually quick and clear.
Is the Integral still in scheduled service today?
The scheduled service it was procured for is history; other designs now dominate today's regional rail. Whether and where individual vehicles still move around changes - rely on current sightings rather than older service lists.
Why are car bodies built from aluminium?
Because of weight. A lighter train needs less traction power, uses less fuel and puts less strain on the track. The price is more complex manufacturing and repair - aluminium structures can't be restored to service as easily as classic steel bodies.
How do I best photograph a multi-part articulated train?
With more distance and a slight angle, so that the whole train length fits into the frame and the articulated design remains visible. A pure front-on shot shows the distinctive face, but sacrifices exactly the feature that defines this vehicle.
How do I identify the exact vehicle?
By the full vehicle number and the markings on the car body. For vehicles outside the DB system, the operator logo, vehicle name and livery are also useful - though they change faster than the number, so it's best to record both.
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