Key takeaways
- The 229 isn't a new-build locomotive: it was created from Class 219 machines by fitting new engines.
- The silhouette stays the same: six axles, long flat body, rounded fronts – the famous U-boat shape.
- Only the number reliably separates the 219 and 229; the class number reflects the changed power plant.
- Rebuild classes are typical for Germany: remotorised variants 233 and 241 also emerged from the 232.
- The remaining fleet is small and mobile: keeper, livery and use change – always check current details.
Contents
Fact file
| Vehicle type | Main-line diesel locomotive for passenger and freight trains |
|---|---|
| Origin | Rebuild of Class 219 (DR 119) locomotives |
| Rebuild work | Replacement of the original engine set with modern diesel engines |
| Wheel arrangement | C'C' (two three-axle bogies) |
| Transmission | diesel-hydraulic |
| Basic shape | the long, flat body of the Class 219 – nicknamed U-boat |
| Status | withdrawn from DB's regular service; individual locomotives with private keepers |
Identifying features
Is this really the class in front of you?
- Six axles in two three-axle bogies
- A long, flat body with rounded fronts, as on the Class 219
- Vehicle number begins with 229 – the decisive difference from the 219
- Two separate engine areas with exhaust and cooling equipment on the roof
- Often in liveries of private keepers rather than the DB colour scheme
Updated: August 2026 – Six axles, an extremely long flat body, rounded ends – and yet not a 219: the Class 229 is the remotorised rebuild of the well-known U-boat locomotive. This page explains why this class exists, how you tell it apart from the original class, and what’s realistic when searching for the few remaining locomotives.
Spotted a rare rebuild?
With small remaining fleets, every dated sighting with the number counts – captured with Traintrack in seconds.
What is the Class 229?
The Class 229 is a six-axle diesel-hydraulic main-line locomotive created by fitting new diesel engines into locomotives of the Class 219. Wheel arrangement C’C’, basic shape and running gear come unchanged from the original class – which is why the 229, too, carries the characteristic U-boat silhouette.
Operationally the rebuild was a compromise: the railway – from 1994 Deutsche Bahn AG – wanted to keep using the existing basic design, but get rid of the drawbacks of the original power plant. The result was a locomotive with an old shell and new innards – a pattern that keeps recurring in Germany.
Rebuild classes: why a new number becomes necessary
German class numbers aren’t a manufacturer’s type plate, but an operational ordering system. If something changes that matters for use, the vehicle gets a new number – even if it stays visually the same.
| Original class | Rebuild class | What changed |
|---|---|---|
| 219 (DR 119) | 229 | new engine set |
| 232 (DR 132) | 233 | more powerful diesel engine |
| 232 (DR 132) | 241 | more powerful engine for heavy freight traffic |
| 215 | 225 | train heating removed, pure freight use |
| 201/202 (V 100 East) | 203, 293 | remotorisation by different rebuilders |
Anyone who knows this system reads vehicle numbers differently. The first three digits reveal not just the design, but also the technical state. For the general approach to placing unfamiliar vehicles, it’s worth looking at the guide to identifying classes; how the twelve-digit vehicle number with country and keeper code is built is explained in the piece on the UIC number.
How to identify a 229 in the field
Six-axle diesel locomotive: which class?
U-boat family: 219 or 229
A long flat shape and hydraulic drive point to the 219 or its remotorised rebuild, the 229. Only the full number separates the two.
Soviet six-axle locomotives
A tall, angular body and diesel-electric drive point to the 231 and 232 family, along with their rebuilds.
Not an older six-axle locomotive
Four axles or a very quiet drive point to the V 160 family or to modern diesel locomotives run by private keepers.
Hydraulic or electric: the ear helps
Diesel-hydraulic locomotives such as the 219 and 229 let the engine rev up noticeably on starting off, while speed follows with a delay. Diesel-electric machines run more evenly. Once you've directly compared both, you can place the drive type even without seeing the vehicle.
Keep an eye on small remaining fleets
Community sightings show you where a 229 was last reported – before you plan a long trip.
Placing it within railway operations
Six-axle main-line diesel locomotives are vehicles for heavy trains and long diagrams. Their axle load is spread over more axles, which allows use on lines with limited track quality – a key reason why the Reichsbahn favoured this design.
The same reasoning stands behind the imported Soviet six-axle locomotives, above all the Class 232 and its variant strengthened for heavy freight traffic, the Class 241.
For you as an observer, that means: you won’t find such locomotives on the regular-interval services of small branch lines, but wherever load is being moved – in front of engineering trains, transfers, block trains and transfer runs. Where you can observe that without entering operational land is described in the guide to spotting at marshalling yards. With the current remaining fleet of the 229, it’s also worth noting that these are almost exclusively workings for private keepers, dispatched at short notice and not shown in the timetable.
A second point concerns identification in detail. Remotorised locomotives sometimes give the rebuild away through small details: changed grilles, different exhaust routing, extra equipment covers on the roof, or different arrangements of the maintenance hatches. These features are real, but hard to assess without a direct comparison against an unaltered machine – and they differ between individual rebuild batches. As a basis for identification they’re no use, then; as a supplement to a number you’ve already read, they’re interesting, because they show how deep a rebuild actually went.
Important caveat: how many locomotives are serviceable at a given time, who has them, and in which livery they’re running, keeps changing. Treat any statement about this – including from forums and wikis – as a snapshot with a date.
Spotting, photography and safety
Reports instead of a timetable
Without scheduled workings, the current sighting picture is the only usable planning basis. The guide to reporting sightings shows how to report cleanly yourself.
Look for side light
The long, flat body needs flat light in the morning or late afternoon so the shape gets structure. Midday light makes it look flat.
Capture the number separately
An extra detail shot of the front or side wall proves the class. For the 219 and 229, that's not a luxury but the only reliable evidence.
Use only public locations
Track areas, depots and stabling sidings are operational or private land and off limits. A platform, path and bridge are enough for good pictures.
Common mix-ups
It points to the 229, when …
- the vehicle number begins with 229
- six axles in two three-axle bogies are visible
- the body shows the long, flat U-boat shape
Look more closely, when …
- the shape fits but you can't read the number – then the 219 is also possible
- the locomotive is running in a private-operator livery with no class marking
- you see the vehicle stabled and partly obscured
It's not a 229, when …
- you count four axles
- the body looks tall and angular rather than long and flat
- the number begins with 231, 232, 233 or 241
Conclusion
The Class 229 is worthwhile as an example of how German class numbers work: they describe not the looks, but the technical and operational state. Visually the 229 stays a U-boat; technically it’s a different locomotive. In the field that simply means: silhouette determines the family, number determines the class, keeper markings determine the owner. And because the remaining fleet is small, every dated sighting is valuable.
Bottom line
Six axles, U-boat shape, number starting with 229: the remotorised rebuild of the 219. Barely distinguishable by looks, so the number is compulsory. Fleet and keeper keep changing – current reports beat any list.
Secure your sightings of rare classes
Number, keeper, date and location in one place – so every encounter stays traceably documented.
Summary
- With the Class 229, the railway tried to keep using the robust basic design of the 219 with up-to-date engine technology.
- The rebuild is barely visible from the outside, so the vehicle number decides identification in the field.
- The fleet has shrunk to a few locomotives with private keepers and keeps changing.
- Anyone wanting to document the class works with the number, keeper markings and date – liveries are not a reliable feature.
Frequently asked questions
What is the Class 229?
A six-axle diesel-hydraulic main-line locomotive created by rebuilding Class 219 locomotives. The old engine set was replaced with modern diesel engines to improve fuel consumption, power and reliability. The vehicle's running gear, body and basic shape were retained – which is why the 229 looks like a 219.
How do I tell the 219 and 229 apart?
By the vehicle number. Both share the characteristic U-boat silhouette with six axles, a long flat body and rounded ends. The rebuild is only visible from the outside in details you can hardly place reliably without a reference photo. The three-digit class number on the front and side wall is therefore the decisive feature.
Why was the 219 rebuilt at all?
The original power plant with two engines was seen as maintenance-heavy and thirsty. The basic design – frame, bogies, body – was, by contrast, usable. Swapping the engines was therefore more economically attractive than buying new locomotives, especially as many diesel lines in the 1990s were still worked loco-hauled.
Does the Class 229 still run?
Not in DB's regular service any more. Individual locomotives stand with private railway undertakings and are used for engineering, transfer or special workings. The fleet is small, and the keeper and operating area keep changing – rely on dated sightings rather than older stock lists.
What does the class number 229 say?
The range 200 to 299 is reserved for diesel locomotives in Germany. The 22x group gathers six-axle, heavy main-line diesel locomotives from former Reichsbahn stock along with their rebuilds. A changed final digit signals a technically relevant change from the original class.
Are there other rebuild classes like this?
Yes, it's a pattern. The six-axle diesel-electric Class 232 produced the classes 233 and 241 through engine swaps. It's also common with shunting and branch-line locomotives: remotorised machines of the V 100 family run under their own class numbers, such as 203 or 293.
Where do I have the best chance of a 229?
On engineering and transfer workings for private keepers, and at announced special trains. There are no plannable scheduled workings. In practice, searching by current sighting reports from other spotters works better than any static list.
How do I tell the current keeper?
By the keeper markings and the keeper code in the twelve-digit UIC number on the side wall. Liveries are deceptive: vehicles are sold, leased and relabelled, often without a repaint. The markings are therefore more reliable than the colour.
Log your sighting of the DR Class 229
Date, location and vehicle number logged in seconds – and visible to the community.
Related classes
DR Class 219
The Class 219, run by the Deutsche Reichsbahn as the 119 and nicknamed U-boat, is a six-axle diesel locomotive built in Romania. Here's how to place it.
Diesel locoClass 232
The Class 232, alias Ludmilla, is Germany's best-known six-axle diesel locomotive: 709 machines of Soviet manufacture. Here's how to recognise it in service.
Diesel locoClass 241
The Class 241 is the uprated rebuild of the six-axle Ludmilla for heavy freight traffic. Here's how to identify it and tell it apart from the 232 and 233.
Diesel locoDR Class V 180
The V 180 was the Deutsche Reichsbahn's big diesel-hydraulic main-line locomotive – with two engines and, depending on the build series, four or six axles.
Diesel locoDB Class V 200
The V 200 is the classic diesel-hydraulic main-line locomotive of the Bundesbahn – and, at the same time, a completely different Reichsbahn machine. This page cleanly separates the two.
Diesel locoClass W232
Behind the designation W232 stands a rebuilt variant of the six-axle Ludmilla family. This page explains what the designation tells you – and what it doesn't.
Who is behind it
Groups, brands, manufacturers and operators – who owns whom and how to recognise them out in the field.
Related guides from the blog
