BMW 116i E87 2004-2011 Coolant Expansion Tank Bottle 7543026
BMW 116i E87 2004-2011 Coolant Expansion Tank Bottle 7543026
BMW 116i E87 2004–2011
Coolant Expansion Tank
Photo-verified used coolant reservoir for the first-generation BMW 1 Series E87 5-door 116i. The moulded BMW catalogue number visible on this exact item is 17 13 7 543 026 (short number 7543026).
Buy from the markings and shape — not the mould code alone
These are photographs from the advertised item. Compare every hose outlet, mounting lug, electrical connection and cap position with your removed tank before ordering.
17 13 7 543 026-02 and PA66 GF30 are visible.
Check cap neck, seam, hose necks and mounting form.
Match the base, sensor area and locating points.
BMW 1 Series E87 5-door example
Photo: M 93 / Wikimedia Commons / CC BY-SA 3.0 DE. Reference vehicle only; trim and colour vary.
Numbers to compare
| Number | Role | How to use it |
|---|---|---|
|
17137543026 17 13 7 543 026 |
Number moulded on this item | Best first reference for this used tank, together with photographs and VIN. |
| 7543026 | Seven-digit short form | Commonly searched version of the same number. |
| 17137519368 | Earlier number | Catalogued predecessor in the same replacement chain. |
| 17137567462 | Later replacement | Superseded 17137543026 in BMW catalogue data. |
|
17137607482 17137640514 |
Later replacement family | Useful cross-references, but a later tank’s broad applications do not automatically prove this early used tank fits every later vehicle. Confirm the exact physical design. |
| 106172-11 | Mould code only | Do not purchase from this code alone. |
What is confirmed, and what still needs checking
The first row is the strongest direct catalogue-family match for this early number. The source listing advertises the E87 116i through 2011, but facelift engine variants and all additional chassis rows are deliberately marked for VIN, number and photograph confirmation before purchase.
| Vehicle | Body / chassis | Years | Engine scope | Status |
|---|---|---|---|---|
| BMW 1 Series 116i | E87 pre-LCI 5-door | 2004–02/2007 production | 1.6 petrol N45 | STRONGEST DIRECT MATCH |
| BMW 1 Series 116i | E87 LCI 5-door | 2007–2011 | 1.6 petrol N43 / N45N and selected later variants | VIN + photo check |
| BMW 1 Series | E81 3-door hatchback | 2007–2011 | Selected petrol variants | VIN + photo check |
| BMW 1 Series | E82 2-door coupé | 2007–2013 | Selected petrol variants | VIN + photo check |
| BMW 1 Series | E88 2-door convertible | 2008–2013 | Selected petrol variants | VIN + photo check |
| BMW 3 Series | E90 saloon | 2005–2011 | Selected petrol variants | VIN + photo check |
| BMW 3 Series | E91 touring | 2005–2012 | Selected petrol variants | VIN + photo check |
| BMW 3 Series | E92 coupé | 2006–2013 | Selected petrol variants | VIN + photo check |
| BMW 3 Series | E93 convertible | 2007–2013 | Selected petrol variants | VIN + photo check |
| BMW X1 | E84 SUV | 2009–2015 | Selected petrol variants | VIN + photo check |
| BMW Z4 | E89 roadster | 2009–2016 | Selected petrol variants | VIN + photo check |
Not confirmed / likely wrong
- BMW F20/F21 1 Series and F30/F31 3 Series or later generations.
- Diesel versions unless your VIN catalogue and removed tank specifically return 17137543026 or an approved interchangeable number.
- Any tank with different hose-neck positions, sensor connection, base locating pin, retaining tabs, filler neck or cap arrangement.
- Vehicles selected only because the mould code 106172-11 looks similar.
- Cars whose existing cooling system has been modified or fitted with a later alternative design.
Order correctly first time
E87 must be the 5-door body; E81 is 3-door, E82 coupé and E88 convertible.
Look for 17 13 7 543 026 / 7543026 on your tank or obtain a VIN catalogue result.
Match hose ports, sensor area, mounting tabs, cap and moulded shape.
Send your VIN and a clear photo of the removed tank through eBay Messages for a pre-sale check.
Cooling-system function and common failure symptoms
Function and location
The expansion tank stores reserve coolant and provides space for coolant to expand as engine temperature rises. Its cap helps the cooling system operate under controlled pressure, while the level-sensor area allows the vehicle to warn of low coolant where the sensor is fitted. It is mounted under the bonnet beside the radiator/inner-wing area and connects into the engine cooling circuit.
Symptoms of a failing tank
- Low-coolant warning or repeated top-ups
- Hairline cracks, staining or dried white/blue coolant residue
- Wetness around the seam, cap neck or hose outlets
- Sweet coolant smell after driving
- Loss of cooling-system pressure
- Heater temperature fluctuation or overheating
- Brittle hose necks or damaged mounting points
Factory-fit form without the new-part price
Correct geometry
An original used tank is moulded around the vehicle’s designed hose positions, cap thread, sensor location and mounting points, reducing the risk of poor alignment found with low-cost copies.
Known material
This item is marked PA66 GF30: glass-fibre reinforced polyamide selected for strength, heat resistance and dimensional stability in an engine-bay environment.
Potential saving
Buying a serviceable used component can save up to 70% compared with some new retail prices. Actual saving depends on the current new-part price and availability.
Tools, estimated time and fitting steps
Suggested tools
Eye protectionGlovesDrain pan8/10 mm socketsRatchet + extensionHose-clip pliersTrim/pick toolScrewdriversPressure testerBleeding/filling equipment
Use the correct BMW-approved coolant specification and deionised water where dilution is required.
Planning time
Estimated labour: 0.8–1.5 hours.
Access, engine configuration, seized clips, hose condition and the correct bleeding procedure can change the time. This is a planning estimate, not a fixed quotation.
Fitting and repair service: subject to workshop availability and prior arrangement through eBay Messages.
Labour-rate × estimated time
eBay does not permit JavaScript in descriptions, so this compliant table replaces an interactive calculator. Multiply your garage’s hourly rate by the labour time.
| Garage rate | 0.8 hour | 1.0 hour | 1.5 hours |
|---|---|---|---|
| £60 per hour | £48 | £60 | £90 |
| £75 per hour | £60 | £75 | £112.50 |
| £90 per hour | £72 | £90 | £135 |
| £110 per hour | £88 | £110 | £165 |
| £130 per hour | £104 | £130 | £195 |
Illustrative labour only. Excludes the part, coolant, diagnostics, consumables, additional repairs and any tax charged by the chosen garage.
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Fitting and repairs
Workshop fitting and repair services are available subject to workload, part suitability and prior appointment through eBay Messages.
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Sold under the VAT Margin Scheme / Global Accounting Scheme for second-hand goods. VAT is not shown separately and is not reclaimable by the buyer.
Fair, evidence-based handling
Returns are handled under the return policy shown on the eBay listing and applicable consumer law. Return the item in the same condition, securely packed. Where eBay and law permit, a deduction may be made only for proven loss in value caused by installation, use, alteration, damage or inadequate return packaging. This is not a blanket restocking fee and does not affect statutory rights. Faulty or not-as-described claims are handled under eBay policy and UK law.
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