Our verdict
Murray's biggest petrol push. The InStart electric-start system is genuinely brilliant when it works — press button, mower starts — but the lithium battery pack is a known weak point, and out-of-warranty replacement is expensive enough to write the mower off. Buy new with full warranty or buy used very cheap; there's no middle ground that makes financial sense.
Pros & cons
Pros
- InStart push-button electric start — no pull cord
- Briggs 675iS is the upgraded 'is' (idle stop) variant
- 51cm cut covers ground fast
- Variable-speed self-drive
Cons
- InStart battery is consumable (~£40 every 4 years)
- 33kg is heavy on slopes
- Murray dealer support thin — InStart faults need B&S service centre
Full specs
| Type | Petrol |
|---|---|
| Cut width | 51 cm |
| Engine / Power | Briggs & Stratton 675iS 163cc |
| Weight | 33 kg |
| Deck | Steel |
| Self-propelled | Yes |
| Rear roller | No |
| Mulching | Yes |
| Cutting heights | 6 positions |
| Bag capacity | 70 L |
| Suited to lawn | Large |
| Noise level | 95 dB |
Buying second-hand
Used EQ700Xs are scarce because owners run them until the InStart dies, then bin them. £250-330 for a working example is realistic. The fallback pull-cord is fitted but hidden under the cowling — confirm it works before buying. If the InStart battery is dead, the seller usually doesn't know it's a £40 part and will accept £180 — that's the deal.
Where to buy the Murray EQ700X
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Repair-cost reference
UK 2026 ballpark prices for the parts you're most likely to need on this mower. OEM is dealer-genuine; aftermarket is what you'll find on eBay or generic small-engine suppliers. Use these to sense-check any quote and to negotiate on used buys.
| Part / job | OEM | Aftermarket |
|---|---|---|
|
Replacement 51cm blade
Annual sharpening is free; replace when bent or cracked.
|
£24–£32 | £8–£12 |
|
Drive cable replacement
Stretches at 5–8 years. 30-minute DIY fit.
|
£18–£28 | £8 |
Fair-offer calculator
Tell us about a specific used listing for the Murray EQ700X you're looking at. We'll compute a fair offer range from our used-market data and the condition signals you provide.
Calculations are guidance, not gospel. Used-market prices vary by region (Scotland is typically 10–15% cheaper than the South-East), season (October cheapest, March most expensive), and seller motivation.
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