AutelOBD2 Code Reader AutoLink AL319 Universal OBD2 Scanner Car Diagnostic Tool Check Emission Vehicle Engine Fault Code Reader

Excellent machine, will diagnose multiple problems, easy to use..

I ordered the Autolink AL319 from Amazon when I was pestered by the engine malfunction light on my 2002 Mercedes C32 AMG. The Autel reader immediately identified the stored fault code as an occasional ignition misfire and the code told me exactly which cylinder to look at. It also provided me with a snapshot view of the engine's many sensors, stored at the moment the fault code was generated. The problem was quickly despatched and the MIL (engine warning light) reset very easily.Other than my investment in Autel the cost was zero, the total cost being somewhat less than a dealership might have charged just to read the fault code. And I still have my Autel for routine check-ups and future fault diagnosis.Subsequently the device has identified a failure of the chargecooler circulation pump by alerting me to an extraordinarily high intake temperature. The absence of proper coolant circulation through the intercooler and heat exchanger produces potentially damaging intake air temperatures. This is quite a common failure in supercharged AMG cars of a certain age (mine has covered 90,000 miles) but strangely doesn't produce an ECM fault code nor does it light the engine malfunction lamp until the inlet temperature is so severely high that the ECM disables the supercharger, engaging limp-home mode. Such temperatures can cause intercooler failure, allowing coolant to enter the engine. The resulting hydraulic effect in the cylinders (water and anti-freeze refuse to be compressed) guarantees a totally wrecked engine. Many owners are driving their cars around blissfully unaware of the pump failure and the resulting danger, the only route to a safe early warning is to read the inlet air temperature the moment it is felt that performance isn't what it should be. Used routinely the Autel is a very economical safeguard!Anyone with a supercharged or turbocharged engine with intercooler and/or chargecooler who suspects that full-on acceleration performance isn't quite what it should be should be plugging-in an Autel reader to identify the Inlet Air Temperature and possibly the 'manifold absolute pressure' while driving.And anyone who owns a supercharged AMG engine should view the Autel as the most vital accessory they'll ever add to their fine motor car. Mine has already paid for itself several times over - and if you contemplate the cost of a replacement 3.2 V6 supercharged AMG hand-built engine... phew, what phenomenal value for money!

Great little tool, has read both my cars (Vauxhall and VW) without issue and cleared both faults. I have had a long running issue with the VW related to the O2 sensor and had it read with VAG com and snap-on readers this gave more info pointing to it being a fault with the pre warming circuit and a fault to ground!Also had some success with a Jaguar and Hondas for friends, it thought the Jag was spark ignition when it was a diesel though on the live reading screen it did not report spark advance so must have known there were no spark plugs to read.The colour screen is clear and easy to read, the lead is an ok length but could do with being a little longer and the live data stream is clear. The codes come with descriptions rather than just a number and will ask for manufacturer to read their specific codes. Buttons are responsive if feeling a little cheap but over all for DIY use this seems like a solid little number.At £20 a pop for a code reading and clearing off my local garage this has already paid for itself. If you are a DIY mechanic this is well worth the money.NOTE: this will clear errors but unless you fix the issue causing the error it will reappear.

Cheap, effective and could save you a lot of cash by diagnosing easy problems,Allowed me to replace many sensors in the past alongside the help of google .

Fantastic diagnostic tool, found my two faults within seconds of plugging in. Very easy to use, its worth spending a little extra and buying a 'manufacturer specific' tool, which this is, it simply reads the VIN number when pugged in and knows exactly what model of car it's interfacing with. The benefit of this is it not only comes up with the error code, but gives a brief description of the fault on the display so you don't have to look up the fault.The tool will also allow you to turn off the fault light, remmeber the fault is still present and will need fixing, the handset will also check your emissions and carry out a full diagnostic check on the vehicle. It's very simple to use and has just three buttons; I/M, enter/exit & scroll. It has a colour display which is very easy to read and legiable. Autel is a market leader in diagnostics and some of their tools cost thousands and are used by professional mechanics.Highly recommended and worth the extra money!!

The device does its basic job of reading engine error codes, but with an annoying limitation:For me, the most stringent limitation was the restriction of the built-in manufacturer-specific codes to vehicle models sold in the US, meaning the complete absence of any Peugeot (my car), Citroën and many others. Once you have set the manufacturer to "other", all you get are the "raw" codes, with no description and no option anywhere ever again to set up the vehicle make other than a factory reset.I never seem to get any "Freeze Frame" data other than the code itself. I know that this is not a problem with the car's ECU, because I got such data from my garage before.I find it irritating that the tool appears to fail once you go back to the top-level menu and try to select another function. It will try to re-establish connection with the car, and give a "Vehicle Linking Error". Only disconnecting and reconnecting it will help at this stage, In general, linking to the car seems a fraught process. I found that it works most reliable when plugging in the device with the ignition off, then selecting one of the functions "OBDII/EOBD" or "Ready Test" and only then, after the linking process has begun, turning on the ignition, but not starting the engine.