Skip advert
Advertisement

XTOOL iOBD2 on-board diagnostic tool

Clever diagnostics box plugs into your car then sends data to your phone

Overall Auto Express rating

5.0

Speedos and in-car fuel economy readings are notoriously inaccurate, but this clever new kit flashes up real-time performance and efficiency data on your phone.

iOBD2 comprises a small white box and a free smartphone app. The box took minutes to fit, as it simply attaches to your car’s On Board Diagnostic (OBDII) port – under the steering wheel in our Kia and in the glovebox of our Peugeot.

Advertisement - Article continues below

Once you’ve downloaded the app to your Apple or Android smartphone, select iOBD2 from your list of WiFi connections. Enter your car’s details, and you get three ways to view live data: Diagnosis, Performance Test and My Dashboard. Diagnosis offers the most info, so can bring up fault codes and tell you what they mean. It found a problem on our car we thought had been rectified.

Performance Test lets you measure acceleration or braking over a set time or distance, while My Dashboard enables you to personalise the data – everything from revs, speed and efficiencyto coolant temperature. However, the displays could be clearer.

At £114, it’s not cheap. Its rival from Garmin, the ecoRoute HD (our Product of the Year 2011), is £99.99, but is for Android only. iOBD 2 works on Android and Apple devices, and is a worthy investment for its functionality.

Skip advert
Advertisement

New & used car deals

MG MG4

MG MG4

RRP £26,995Avg. savings £8,094 off RRP*Used from £13,199
Omoda 5

Omoda 5

RRP £25,915Avg. savings £2,116 off RRP*Used from £18,900
Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £3,331 off RRP*Used from £9,600
Nissan Qashqai

Nissan Qashqai

RRP £27,415Avg. savings £5,568 off RRP*Used from £12,295
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Kia PV5 Passenger MPV undercuts the VW ID.Buzz by a huge £25k
Kia PV5 Passenger - show front

New Kia PV5 Passenger MPV undercuts the VW ID.Buzz by a huge £25k

New entry into the electric people carrier market undercuts the VW ID. Buzz by a significant margin
News
29 Apr 2025
Car Deal of the Day: BMW’s ultimate luxury SUV at an unusually low price
BMW X7 - front

Car Deal of the Day: BMW’s ultimate luxury SUV at an unusually low price

German firm’s flagship SUV could never be called cheap but it is exceptional value at £735 a month – making it our Deal of the Day for Sunday 27 April
News
27 Apr 2025
New 2025 Kia PV5 van starts from a tempting £22,645
Kia PV5 Cargo on display at Commercial Vehicle Show - front 3/4

New 2025 Kia PV5 van starts from a tempting £22,645

All-new entry into the van market promises competitive pricing and comes with a range of up to 247 miles
News
30 Apr 2025