Remote car diagnostics – have your vehicle data assessed independently
Your vehicle shows a fault, the garage names several possible causes – and in the end you are the one who has to decide which part gets replaced. MotorScope’s remote car diagnostics starts one step earlier: your diagnostic data is assessed systematically, before any parts are swapped.
You send the fault memory read-out, freeze frames, live data and a description of the symptom. Usually within one hour you receive an analysis report with a traceable assessment and recommendations for the next test steps – around the clock, from anywhere, independent of repair work and parts sales, with no ties to any garage.
Have your diagnostic data checked
When remote diagnostics makes sense
Not every fault code calls for a second opinion. Remote diagnostics becomes worthwhile when the data and the repair recommendation do not add up:
-
The engine warning light is on, but the code alone does not explain the behaviour.
-
The vehicle goes into limp-home mode or noticeably loses power.
-
The engine judders, starts poorly or uses more fuel than usual.
-
The DPF regeneration fails to run or repeats unusually often.
-
The same fault returns after a repair.
-
Garages name two different causes.
-
You are asked to approve the replacement of an expensive part and want to understand the data first.
-
Several entries sit in the fault memory at once and nobody puts them in order.
Safety first. If the engine warning light is flashing, if there is a severe loss of power, smoke, a smell of fuel, unusual noises, or anything unusual about the brakes or steering, do not keep driving the vehicle. Have it checked on site first – a data analysis is no substitute for an inspection of the vehicle.
What lies behind unclear fault patterns
An entry in the fault memory names the system that reported a deviation. It does not say why. Five patterns explain a large share of the cases in which replacing a part changed nothing – and a sixth point decides whether the data is meaningful at all.
Consequential fault instead of cause
A control unit reports a deviation that it merely passes on. If that component is replaced, the entry disappears briefly and comes back as soon as the actual trigger occurs again.
Voltage and earth problems
A weak battery, increased contact resistance or a corroded earth connection can generate entries in several control units at once. The fault pattern looks complex but has a single common starting point.
Communication faults
If communication between the control units drops out or is disturbed, control units that are technically fine report faults too. Without looking at the timing and order of the entries, cause and effect are hard to tell apart.
Sensor values that look plausible
A reading can lie within the permitted range and still be wrong. Only the target/actual comparison under load, at operating temperature or at idle shows whether the value fits the operating situation.
Mechanical issues that look like an electronic fault
Unmetered air, carbon build-up in the intake tract or on the EGR valve, increased exhaust back pressure or a leak in the charge-air path all trigger fault messages in the control unit. The code points to the sensor; the cause lies in the air or exhaust path.
Cleared fault memory
If the fault memory was cleared before the data was sent, the history is missing: frequency, environmental data and sequence are lost. A fresh read-out after the fault reappears is then worth more than the old print-out.
What data remote diagnostics needs
Required
-
Vehicle data: VIN (17 characters; the letters I, O and Q do not appear in it), model, engine, year of manufacture and mileage.
-
Description of the symptom: when the behaviour occurs – right after starting, under load, on the motorway, with a cold engine or only after a longer drive. Since when, how often, under which conditions.
-
Diagnostic data: diagnostic tester export or fault memory print-out with control unit, fault code and fault status.
Helpful, if available
-
Freeze frame data with engine speed, coolant temperature, engine load or vehicle speed.
-
Live data and target/actual comparisons.
-
Screenshots from an OBD app and photos of the warning lights.
-
Invoices for work already carried out and a list of replaced parts.
-
Any indication that the fault memory was cleared, that the battery was weak or that a connector was recently disconnected.
How to make your data usable. Send the complete log wherever possible rather than a code typed out by hand. Screenshots only help if every value is legible and not just the top line of the screen is shown. Photos should be sharp and show the entry in full. A special diagnostic tester is not a requirement – existing print-outs, photos or app exports are often enough, provided the fault description is meaningful.
How the analysis works
1
Describe the problem
Give the vehicle model, engine, year of manufacture and mileage – and describe when the symptom occurs.
2
Send the data
Upload fault codes, diagnostic logs, freeze frames or screenshots through the form.
3
Assess the connections
MotorScope compares the data with the symptoms you described and the work carried out so far.
4
Receive the analysis report
Usually within one hour of complete data arriving, you receive your analysis report with a traceable assessment and a prioritised list of possible checks. Assessment runs around the clock – at night and at weekends too.
What the analysis report contains
-
Systematic assessment of fault memory, live data and sensor values
-
Plausibility check of the values and assessment of the technical connections
-
Comparison with available manufacturer specifications and reference values
-
VIN-based check for publicly available recalls and service campaigns
-
Assessment of the irregularities and recommendations on how to proceed
-
A clear question to take to the garage with you
What remote diagnostics does – and what it does not
What remote diagnostics does
-
Puts fault memory, live data and symptoms into context
-
Shows which measurement is most likely to bring clarity next
-
Makes a repair recommendation verifiable before you approve it
-
Prepares the garage visit with a clear question
-
Is independent of repair orders and parts sales
What it does not do
-
Repairs and parts sales
-
Approving repairs or certifying roadworthiness
-
Replacing a personal inspection of the vehicle
-
Swapping parts on suspicion, or a guarantee of success
-
Replacing the German MOT (HU), the emissions test (AU) or any other legally required inspection
If the data does not show a clear picture, the report says so explicitly. Rather than settling on a cause prematurely, it shows which check will bring the most clarity next.
Remote diagnostics or an on-site appointment?
Remote analysis (remote car diagnostics)Mobile analysis
ProcessYou send existing diagnostic dataMotorScope reads the data directly from the vehicle
LocationFrom anywhereWithin a radius of up to 200 km around 21149 Hamburg
RequirementExisting diagnostic data or print-outsAccess to the vehicle on site
Price€19.99 incl. VAT€149.00 incl. VAT plus travel costs
Turnaround timeUsually within one hour of complete data arrivingAnalysis report following the appointment
AvailabilityAround the clock, at night and at weekends tooBy appointment
ResultAnalysis report with assessment and recommendationsAnalysis report with assessment and recommendations
Travel costs for the mobile analysis: €0.90 incl. VAT per kilometre, charged for the one-way distance from 21149 Hamburg. The route determined via Google Maps applies. Example: 50 km one way amounts to €45.00 in travel costs, €194.00 in total. At the maximum operating radius of 200 km it is €180.00 in travel costs, €329.00 in total. The exact travel costs for your address are given to you before you complete the order.
Remote analysis is also available for vehicles in Austria and Switzerland – an on-site appointment is not part of the offer there. The mobile analysis in Hamburg and northern Germany can be booked separately.
Frequently asked questions about remote car diagnostics
How quickly do I receive the analysis report?
Usually within one hour of your complete diagnostic data arriving – around the clock, at night and at weekends too. If the data is incomplete or illegible, a short query comes first; the turnaround time then starts when the missing details arrive.
Do I need a special diagnostic tester?
No. What matters is that the fault code, the control unit and – where available – the status or environmental data are legible. Print-outs from the garage, photos or app exports meet that in many cases.
Can I send data from any OBD app?
In many cases, yes. A complete export is usually better than a single screenshot, because it contains the status and environmental data.
Does the analysis replace a garage?
No. It helps you prepare a repair or a further check on a factual basis. Mechanical, measurement-based or safety-related checks must be carried out on site where needed.
Can MotorScope say which part has to be replaced?
No – approving a parts replacement is not part of it. The analysis puts the indications in order and shows which checks can confirm or rule out a component.
Does the analysis help with several faults at once?
Yes. Several entries in particular can share a common starting point – low voltage, a communication fault, or a fault that triggers follow-on entries.
Can I send data after a garage visit as well?
Yes, by all means. If parts have already been replaced or faults cleared, a fresh read-out and a short description of the work done so far are especially valuable.
What happens if the data shows no clear cause?
With complex fault patterns that is normal. The report then names which measurement or check will bring the most clarity next, instead of committing prematurely.
Is remote diagnostics available throughout Germany?
Yes. The assessment is carried out online using the data you send and does not depend on location. An on-site appointment can be booked separately as a mobile analysis in Hamburg and northern Germany.
You will find further answers under All questions and answers.
Understand the data first. Then act with purpose.
Upload your diagnostic data and receive an independent assessment usually within one hour – before you order the next part. Around the clock, at night and at weekends too.