Serious Mercedes C Class and Toyota Corolla crash on the M4 in Hounslow - 22 Sep 2025
Accident reference 2025010599203
Accident summary
On Monday 22 September 2025 at 18:50 a serious collision occurred near M4, Hounslow involving 2 vehicles (toyota corolla, mercedes c class) and 1 casualty (1 serious) Weather at the time was recorded as fine no high winds. Road surface conditions were dry. Lighting was described as daylight. A police officer attended the scene.
Key details
- Posted speed limit: 20 mph
- Road type: One way street
- Junction: Private drive or entrance
- Setting: Urban
Location
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Collision records on this page come from the Department for Transport's STATS19 data, which is published once a year, so a crash from today will not appear in the historical data yet. For today's incidents, check live M4 closures today.
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Basic Information
| Accident Reference | 2025010599203 |
| Police Reference | 010599203 |
| Date & Time |
Monday
|
| Severity | Serious |
| Vehicles Involved | 2 |
| Casualties | 1 |
| Police Force | Metropolitan Police |
| Police Officer Attended | Yes |
Road & Location Details
| Area Type | Urban |
| First Road | M4 |
| Second Road | Unclassified road |
| Road Type | One way street |
| Speed Limit | 20 mph |
| Trunk Road | Yes |
| Highway Authority | E09000018 |
| Current Highway Authority | E09000018 |
| LSOA Code | E01002632 |
Junction Information
| Junction Detail | Private drive or entrance |
| Junction Control | Give way or uncontrolled |
Environmental Conditions
| Light Conditions | Daylight |
| Weather Conditions | Fine no high winds |
| Road Surface Conditions | Dry |
| Carriageway Hazards | None |
Enhanced Collision Data
| Injury Based Classification | Yes |
| Adjusted Serious Casualties | 1 |
| Adjusted Slight Casualties | 0 |
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SeriousVehicles (2)
Vehicle 2
Vehicle Information
| Type | Car |
| Make/Model | TOYOTA COROLLA |
| Engine Capacity | 1987cc |
| Fuel Type | Hybrid electric |
| Left Hand Drive | Yes |
| Manoeuvre | Going ahead |
Driver Information
| Age | 24 |
| Sex | Male |
| Journey Purpose | Journey as part of work |
| IMD Decile | 7 (1=most deprived, 10=least deprived) |
Vehicle 1
Vehicle Information
| Type | Car |
| Make/Model | MERCEDES C CLASS |
| Engine Capacity | 1496cc |
| Fuel Type | Hybrid electric |
| Left Hand Drive | Yes |
| Manoeuvre | Going ahead |
Driver Information
| Age | 27 |
| Sex | Male |
| Journey Purpose | Not known |
| IMD Decile | 3 (1=most deprived, 10=least deprived) |
Casualties (1)
Casualty 1
Basic Information
| Class | Driver or rider |
| Severity | Serious |
| Type | Car occupant |
| Age | 27 |
| Sex | Male |
| Associated Vehicle | Vehicle 1 |
Additional Details
| IMD Decile | 3 (1=most deprived, 10=least deprived) |
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Data Source
This data is from the UK Department for Transport's STATS19 road safety dataset, available under the Open Government Licence v3.0.