Key takeaways
- The IC4 is the four-car diesel of the Danish bellows-front family – the car count sets it apart from the three-car IC3.
- Fastest way to identify it: spot the bellows front, rule out a pantograph, count the car bodies.
- A different manufacturer from the IC3: the IC4 comes from AnsaldoBreda, not from Danish production.
- The procurement is regarded as a case study in delays and technical problems in rolling-stock manufacturing.
- Fleet size and deployment are especially volatile – be sure to check the current status here.
Contents
Fact file
| Vehicle type | Four-car diesel multiple unit for long-distance and regional services |
|---|---|
| Designation | Danish Litra MG, trade name IC4 |
| Manufacturer | AnsaldoBreda (Italy) |
| Formation | four car bodies in articulated design |
| Front | rubber nose with a walk-through gangway, concept taken from the IC3 |
| Propulsion | diesel engines, no pantograph |
| Notable trait | procurement marked by significant delays and technical problems |
| UIC country code | 86 for Denmark |
Identifying features
Is this really the class in front of you?
- Four car bodies per unit – the IC3 has three
- Rubber-nose front like the IC3 family, but a differently proportioned head shape
- No pantograph on the roof – the IC4 is diesel-powered
- Articulated design with a continuous interior across the whole unit
- Litra marking MG on the car body
- UIC numbers with the country code 86 for Denmark
Updated: August 2026 – A rubber-nose front like the IC3, but four car bodies instead of three: that’s the IC4. It was meant to be the big breakthrough in Danish long-distance services and instead became one of Europe’s most discussed procurement projects. This page shows you how to tell it apart from the IC3 with confidence, and why you should pay particularly close attention to the date of your sighting with this vehicle.
With volatile fleets, the date counts
Record number, location and day – with vehicles whose status keeps changing, the timing is half the information.
What is the DSB IC4?
The DSB IC4 is a four-car diesel multiple unit of DSB Danske Statsbaner with the Litra designation MG. It was built by the Italian company AnsaldoBreda, which was taken over by Hitachi Rail in 2015. In concept it links directly to the DSB IC3: the IC4 too carries a rubber-nose front, which forms a walk-through gangway when two units are coupled.
The decisive difference, though, lies not in the looks but in the origin. While the IC3 comes from Danish manufacturing and matured over decades, the IC4 came from a completely different industrial source – and the procurement became one of the best-known problem cases in European rolling-stock building.
How to tell the IC4 and IC3 apart
Count the car bodies
Four car bodies is the IC4, three the IC3. This is the fastest and most reliable feature – countable even from a greater distance.
Check the roof
No pantograph means diesel. If a four-car train with a bellows front carries a pantograph, it's the electric variant of the family, not the IC4.
Compare the head shape
Both families have a bellows, but the proportions of the head end differ. Once you've seen both vehicles side by side, you'll recognise the difference again later too.
For how to work through such features in a fixed order instead of getting stuck on details, see the guide to identifying rolling-stock classes. The electric variant with the identical bellows front is covered on the page about the DSB IR4; what locomotive-hauled diesel workings looked like before it is shown on the page about the DSB ME.
Rule of thumb for the bellows-front family
Three carriages, no pantograph: IC3. Four carriages, no pantograph: IC4. Four carriages, with a pantograph: IR4. That sorts the whole Danish bellows-front world into one sentence.
Why the IC4 became a case study
Not every vehicle is interesting for its engineering. The IC4 is interesting for its history – and that can be described factually, without inventing figures.
| Aspect | What defines the IC4 | Significance for observers |
|---|---|---|
| Origin | Italian manufacturing instead of Danish tradition | different detail design despite a familiar basic idea |
| Procurement | significant delays until delivery | entry into service dragged on for years |
| Engineering | recurring operational difficulties | availability was never a given |
| Role in the network | meant to complement and replace the IC3 | that ambition was only partly achieved |
| Status | repeatedly the subject of decisions | any statement on it is a snapshot |
What’s remarkable is how closely the IC4 follows its predecessor visually and how little it carries on technically. The rubber bellows, the walk-through gangway, the basic idea of a diesel-powered multiple unit for a network with many unelectrified lines – it takes over all of that. But the execution comes from a different industrial culture and from a procurement process that was under time pressure from the start. For observers, that’s a good reminder that outward similarity says nothing about technical kinship: two vehicles can carry the same coupling solution and still be built in fundamentally different ways.
For spotters, that makes the IC4 an unusually exciting vehicle. What’s still running today can be stabled tomorrow – and conversely, individual units sometimes return to service. Anyone who documents a sighting cleanly with a date thereby makes a small contribution to operating history. How reporting sightings works and what matters when doing so is explained in the guide to reporting a sighting.
Status changes – your sighting stays
An entry with a date is worth more than any list that's already out of date by the time it's written.
Where and when you realistically have a chance
For a fleet with a changing status, the most important piece of information isn’t the location, but the current status. Static lists are especially unreliable here, because deployment scope and availability have shifted repeatedly over the years.
The practical approach therefore looks like this: first check whether and where units are currently being reported, then plan an observation trip. This order matters more for this vehicle than for any other Danish one. With a stable class, you can drive to a busy hub station and trust that something suitable will come along eventually. With a fleet of changing status, that doesn’t work – there, the advance research decides whether the trip is worthwhile at all. How to combine real-time data and community reports for this is shown by the guide to live sightings and train radar. For German observers, the honest assessment is: scheduled IC4 services in Germany are not to be expected – anyone wanting to see the vehicle has to go to Denmark.
Stay on the platform
A rare or endangered vehicle doesn't justify breaking the rules. Tracks, operational railway land and stabling sidings are off limits and, as a rule, private property. You get the better pictures from the platform anyway – and don't have to give way to anyone while doing so.
Photography tips for the IC4
Show the whole unit
Since the car count is the decisive distinguishing feature, it should be traceable in the picture. An angled view along the train achieves this better than a tight frontal shot.
Head end in raking light
The bellows front has few hard edges. Side light in the morning or late afternoon gives it structure; midday light makes it look flat.
Capture the number and Litra
With a family sharing a similar design language, the marking is the actual information. Keep it legible in the frame.
Common mix-ups
It points to an IC4 when …
- the unit has four car bodies
- the front carries a rubber bellows
- no pantograph sits on the roof
- the Litra marking reads MG
Look more closely when …
- several units are coupled and you can't count the car bodies cleanly
- you only see the train head-on and can't judge the length
- the head shape looks familiar but the proportions don't match the IC3
It isn't an IC4 when …
- the unit has only three car bodies – then it's the IC3
- a pantograph sits on the roof – then it's the electric IR4
- the train is hauled by a separate locomotive
Verdict
The IC4 is a vehicle you keep an eye on less for its engineering than for its history. Identifying it is simple: bellows front, no pantograph, four car bodies. What makes it interesting is that its status has been, and continues to be, in flux for years. Anyone who sees it should therefore note not just the number, but above all the date – with this train that’s the most valuable part of the sighting.
Quick verdict
Four car bodies, rubber bellows, no pantograph: that's the IC4. Three car bodies would be the IC3, a pantograph the IR4 – and the current deployment status always needs checking separately.
Record what can change tomorrow
With Traintrack you document number, location and date in seconds – and have the proof later.
Summary
- The IC4 was meant to replace the IC3 in Danish long-distance services and instead became, over years, the symbol of a difficult procurement.
- Visually it carries on the IC3's bellows-front idea; technically it comes from a completely different source.
- Two glances are enough to identify it: car count and roof.
- Because the status of this fleet has changed repeatedly, date and location belong in every sighting.
Frequently asked questions
What is the DSB IC4?
The IC4 is a four-car diesel multiple unit of the Danish state railway DSB with the Litra designation MG, built by the Italian company AnsaldoBreda. It was meant to complement and replace the three-car IC3 in premium services and carries over its most striking feature: the rubber-nose front with a walk-through gangway.
How do I tell the IC4 and IC3 apart?
Count the car bodies. The IC3 has three, the IC4 four. Both are diesel-powered and have a rubber-nose front, but the head shape is proportioned differently. On coupled units, it's best to count from one bellows to the next.
Why is the IC4 regarded as a problem vehicle?
The procurement was marked for years by significant delivery delays and technical difficulties and became a widely discussed topic in Denmark. As a result, the vehicle never reached the standing it was originally intended to have. Details on the current status change – it's worth checking current sources here.
Is the IC4 still running?
That can't be answered permanently. The deployment scope of this fleet has been adjusted several times, and decisions about its future have come up repeatedly. Treat any statement on this as a snapshot and check the current status via sighting reports before planning an observation trip.
What does Litra MG mean?
MG is the Danish Litra designation for this vehicle family. Denmark names rail vehicles with letter codes instead of class numbers; M stands for vehicles with a combustion engine. IC4, by contrast, is the trade name under which the train became known.
Does the IC4 have the same coupling as the IC3?
It carries over the concept of the rubber-nose front with a walk-through gangway. When two units are coupled, the bellows press against each other and seal the gap so passengers can walk through. Whether and how well units from different families couple with each other is an operational question, not one you can answer from the platform.
Can I see an IC4 in Germany?
Not as a scheduled service. The IC4 is geared towards the Danish network. Danish vehicles do turn up in the border area in Schleswig-Holstein in general, but which ones depends on services and approvals and changes with the timetable years.
How do I usefully document an IC4 sighting?
With the full vehicle number, date, location and – if identifiable – the train formation. Especially for a fleet whose deployment scope has changed repeatedly, the timing is just as valuable as the vehicle itself.
Log your sighting of the DSB IC4 (MG Litra)
Date, location and vehicle number logged in seconds – and visible to the community.
Related classes
DSB IC3 (MF Litra)
No European train is as easy to identify as the IC3: the rubber-nose front forms a walk-through gangway when coupled – a feature found nowhere else.
EMUDSB IR4 (ER Litra)
The IR4 is the electric answer to the IC3: the same rubber-nose front, but a pantograph on the roof. Here's how to tell the two apart with confidence.
Diesel locoDSB ME (Diesel)
The Litra ME is the DSB's classic six-axle diesel locomotive – diesel-electric, boxy, and closely related to its electric sisters. Here's how to identify it out in the field.
DMUArriva LINT 41 (Denmark)
The LINT 41 at Arriva in Denmark is an old acquaintance: the same vehicle family as the German Class 648, just in a different colour and with a different operator.
DMUDSB Desiro (SA Litra)
The Desiro Classic at DSB is an old acquaintance from Germany: the same two-part diesel railcar as Class 642, just with Danish markings.
DMUDSB MR / MRD
MR and MRD are two Litra for one two-part unit – the classic Danish diesel railcar that shaped the regional lines before the IC3.
Who is behind it
Groups, brands, manufacturers and operators – who owns whom and how to recognise them out in the field.
DSB Danske Statsbaner
Denmark doesn't identify its vehicles with class numbers but with letter classes – the Litra. Add to that two electrification systems in one small country and a state railway that gave up freight operations more than two decades ago and now runs passenger services only.
ManufacturerHitachi Rail
Hitachi Rail is the arm of a Japanese industrial group that entered Europe via two traditional Italian firms. Since then, high-speed trains, double-deck regional multiple units and signalling technology have emerged under one roof – only the name Hitachi almost never appears on the vehicle.
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